Speedrun Guide: Lost in Transmission (ARC Raiders) — Objectives, Gear, Strategy
This guide fully rewords and reorganizes strategy, objectives, and troubleshooting to help you complete the Lost in Transmission quest in ARC Raiders efficiently. It includes route maps in prose, recommended loadouts, clear objective sequencing for Control Tower A6, tips for solo and team play, ways to avoid common bugs, reward breakdowns (including the Snap Hook reward ARC Raiders), and a practical speedrun plan.
What this guide covers
Clear step-by-step walkthrough for every objective
Recommended builds and loadouts (solo and group)
Best routes through Control Tower A6 with room-by-room pathing
How to sprint the quest for a speedrun finish
Troubleshooting common issues and quest blockers
Rewards, unlocks, and why the Snap Hook matters
FAQ with quick answers for common player questions
Getting ready: prerequisites and brief overview
Before you begin the Lost in Transmission mission, confirm these baseline conditions to avoid wasted runs:
Game progress: Ensure the mission is available in your mission log and you’ve unlocked Control Tower A6 content.
Recommended Power/Level: Aim for a power level aligned with the mission recommendation (or slightly above) to avoid long fights.
Party status: Decide if you’ll run solo or with a team. This guide details both approaches — solo is doable with stealthier, mobility-focused kits; squads will breeze through with complementary crowd control and area damage.
Inventory: Stock basic consumables (heals, grenades) and confirm you have at least one mobility tool or skill that improves vertical movement. The mission rewards commonly push players toward traversal upgrades, so bring anything that improves repositioning.
Why this mission matters: Lost in Transmission is often an early- to mid-tier objective that ties into Control Tower narrative beats and offers functional traversal rewards like the Snap Hook reward ARC Raiders, which transforms mid-tier mobility and shortens future runs.
Quick mission summary (one-paragraph)
Lost in Transmission tasks your squad with locating a downed signal relay in Control Tower A6, reactivating transmission hardware while defending against escalating waves of hostiles, and escorting the relay data to an extraction point. Expect close-quarters combat in cramped maintenance corridors, vertical traversal in service shafts, and a timed data-upload phase where enemies flood the area. The mission ends with a fast exit to the extraction pad — bring mobility and crowd control. Follow the room-by-room route below for the fastest, safest completion.
Essential loadouts and role setup
Choose weapons and perks that match the mission’s flow. Here are recommended loadouts and roles that maximize success for both solo players and squads.
Solo loadout — mobility + sustain
Primary: High-rate-of-fire assault weapon or submachine gun for close engagements.
Secondary: Short-range shotgun or SMG with strong burst for hallway fights.
Utility: Mobility skill (dash/teleport), deployable shield or heal, throwable stun/grenade.
Perks: Increased reload speed, health-on-kill, and armor mitigation.
Why this works: The mission’s cramped corridors favor close-range weapons and repeated repositioning. Mobility skill prevents being boxed in during the upload phase.
Duo loadout — complementary roles
Player A (Tank/Anchor): High-durability loadout, area damage grenade, and taunt-oriented mods.
Player B (Skirmisher): High mobility, crowd control kit (stuns/EMP), and single-target burst for priority targets.
Why this works: Tanks soak damage while Skirmishers chase down flanking enemies and protect the uploader.
Full squad (3–4) — optimized roles
CC Specialist: EMPs, AoE slows, or deployable traps to control corridors.
Damage Dealer: High sustained DPS for wave clear; prioritize rate-of-fire and magazine size for longer skirmishes.
Support: Healer or shield generator to stabilize contested upload sequences.
Mobility/Scout (optional): Fast striker to secure objectives and handle flanking patrols.
Perks to prioritize across squad: armor penetration, cooldown reduction for defenses, and ammo economy.
Walkthrough: Objectives, step-by-step
Below is a detailed objective flow for a consistent, high-success route through Control Tower A6. Each stage includes specific enemy behavior notes and movement tips.
Preparation objective — Insert into Control Tower A6
Load in and immediately check your HUD for the mission marker: it points toward the maintenance access.
Move as a unit but stagger entry to avoid clustered grenade damage. Clear the staging room of initial patrols; use vertical cover where available and pre-fire choke points.
Tactics: Use a drone or spotting skill if available to mark hidden sentries. Aim for headshots on turret operators to prevent automated turrets from turning the choke into a death trap.
Stage 1 — Reach the downed relay (maintenance corridor)
Route: From the drop zone, proceed down the long maintenance corridor on the left-hand side of the map (southern access), avoiding the central atrium.
Enemy types: Light scouts and repair drones spawn first; spawn timing is predictable. Use short bursts and suppressing fire to clear.
Step tip: When you reach the relay, don’t immediately interact if enemies are visible on the map. Pull back to a defensible alcove, set traps, and then approach to secure.
Stage 2 — Reactivate the relay (upload phase)
Interaction triggers a timed upload. During this period, waves respawn from two defined spawn corridors: northwest vents and the upper service catwalk.
Defensive positions: The small service room adjacent to the relay has two choke points; block one and cover the other. Aim for the upper catwalks to get a height advantage and deny special units easy access.
Priority targets during upload:
Shielded elites: focus them with armor-penetrating rounds or coordinated bursts.
Suicide drones: neutralize early; they close gaps quickly.
Siege units: avoid close contact; use burst DPS or grenades.
Timing tip: If you run solo, start the upload only after you’ve kited a group into a trap or cleared the main approach. Squads should assign one player to watch upper vents while two handle lower spawns.
Stage 3 — Data extraction to the relay console
Once the upload completes, grab the data package (if the mission requires manual pickup). Move through a side maintenance shaft to bypass a heavily camped route that opens directly into the atrium.
Pathing choice: The shaft is narrow but safer; the atrium is faster but triggers heavy artillery units.
Combat note: Expect a brief miniboss spawn (heavy enforcer) near the atrium exit. Stack armor buffs and focus fire; staggered DPS avoids being wiped by its slam attack.
Stage 4 — Escort to extraction pad
The extraction path is an L-shaped approach along the eastern catwalk. Avoid the central elevator as it triggers a delayed spawn wave.
Use smoke or other vision-blocking effects to cover the escort. The extraction pad is exposed; place defensive devices behind the cover and hold the line.
Extraction tip: Do not stand directly on the central extractor plate until the countdown begins. Use the surrounding crates for temporary cover and rotate defenders to intercept flankers.
Detailed Control Tower A6 pathing (room-by-room)
This section translates the map into actionable movement. The goal is to minimize engagement length, avoid predictable spawn corridors, and position for height advantage.
Room 1 — Drop Bay: Clear scouts, move to maintenance corridor A.
Room 2 — Maintenance Corridor A: Take left-side alcoves for cover; progress steadily and check vents for ambushes.
Room 3 — Relay Entry Chamber: Secure perimeters; place a trap at the eastern doorway.
Room 4 — Relay Core: Use cover to the left of console; designate one uploader watcher for upper vents.
Room 5 — Shaft Bypass: Crawl through the shaft to avoid Atrium spawn; be prepared for a short burst encounter at shaft exit.
Room 6 — Atrium Edge: Hold until miniboss is down, then sprint to extraction corridor.
Room 7 — Extraction Corridor: Set explosives near bottlenecks, retreat to pad when timer starts.
Routing rationale: Taking side shafts is marginally slower in raw distance but avoids high-density enemy clusters and artillery spawns that cost time and resources.
Enemy behavior and counters
Understanding enemy spawn patterns and attack behaviors reduces mistakes. Use these counters for predictable survivability.
Light Scouts: Fast, low HP. Counter: burst weapons; avoid melee if clustered.
Repair Drones: Repair turrets and shields. Counter: prioritize with high single-target DPS or EMPs to disable repairs.
Shielded Elites: High durability, frontal shields. Counter: flank or use armor-penetrating ammo and staggered fire.
Suicide Drones: Rush units that explode when near player. Counter: stun/grenade or keep distance and focus other targets first.
Siege/Artillery Units: Trigger from atrium or central plazas. Counter: use cover, mobility to break line-of-sight, and concentrated damage.
General tip: Control Tower A6 favors vertical engagements; gain height where possible and deny enemies the ability to surround you.
Mobility and traversal tricks
Traversal is as important as raw combat. The mission rewards players who move smart.
Use the Snap Hook reward ARC Raiders (if unlocked) to skip lower corridors and reach upper catwalks quickly.
Grapple points: Identify and memorize two primary grapple nodes near the relay — using them lets you avoid turret lines of sight.
Elevator tricks: Some elevators let you cancel mid-ascent to dodge heavy artillery spawns. Hit the cancel button while holding sprint to drop to a maintenance loft and bypass central spawn triggers.
Movement tip: For speedruns, chain a dash, snap-hook grapple, and vertical boost to reach the relay before the majority of scripted spawns initialize.
Speedrun route and strategy
This section gives a tight, repeatable plan for minimal-time completion. It assumes solid aim, reliable mobility, and at least one stun or EMP in the kit.
Goal time: optimized runs can complete the mission in under X minutes (varies with player skill and patch). The focus is minimizing downtime and avoiding unnecessary fights.
Step-by-step speedrun sequence:
Immediate exit strategy: Rush maintenance corridor A using dash+grapple.
Scout clear: Kill only vital patrols; ignore non-aggressive mobs.
Rapid relay activation: When near relay, perform a quick scan for elites. If there are none, begin upload immediately and kite spawn points using a single circular motion to minimize hit exposure.
Data pickup and shaft bypass: Grab the data and use the bypass shaft; skip the atrium to avoid artillery.
Extraction sprint: Use the Snap Hook (if available) to chain to extraction pad; begin extraction as soon as you reach cover, using flash/stun to delay incoming waves.
Key speedrun rules:
Avoid prolonged combat; single out targets and move.
Use mobility cooldowns aggressively; do not save escapes for later unless you are heavily damaged.
Time uploads by pre-clearing the main approach; a clean upload is the single biggest time sink saver.
Common mission bugs and troubleshooting
ARC Raiders is a live-service game and control tower missions occasionally suffer from mission or spawn bugs. This section lists typical blockers and practical workarounds.
Issue: Upload timer stuck or waves not spawning
Fix: Move the uploader slightly away and re-interact; this often rebakes the AI spawn triggers. If the timer still refuses, exit the room and re-enter to reset spawns.
Issue: Extraction won’t activate
Fix: Check for enemies still alive in unseen vents. Use ping or a UAV to reveal the map. If no enemies are visible, try standing off the pad and reinitiating the extraction. As a last resort, abort and restart — sometimes state desync requires a new run.
Issue: Objective doesn't update after collecting data
Fix: Ensure the data item is on your HUD and you physically cross the objective gate. If the gate animation doesn’t trigger, try approaching from a slightly different angle or bring a teammate to the spot and have them interact.
Issue: Players falling through map or clipping
Fix: Rejoin the session (quick matchmaking reconnect usually resolves collision desync). If rejoin is not possible, report the bug via the in-game reporting tool and restart.
Reporting tip: When filing a bug report, include your loadout, time of occurrence, and the approximate map coordinates for faster triage.
Rewards and progression (what you get and why it matters)
Completing Lost in Transmission yields mission XP, currency components, and a chance at mobility-focused gear including the notable Snap Hook reward ARC Raiders — a traversal module that significantly reduces corridor travel times and enables alternative routes through Control Tower A6.
Breakdown:
Base reward: XP and consumable components.
Mid-tier drops: Mods for mobility and weapon handling.
Rare drop: Snap Hook or similar traversal module (chance-based).
Bonus: Completing on faster times or with higher accuracy yields improved loot tiers.
Why chase the Snap Hook: It shortens subsequent mission times, opens speedrun routes, and changes how you approach vertical sections, letting you bypass heavy artillery spawns and avoid miniboss arenas entirely.
Solo vs squad tactics (practical differences)
Solo play: Rely on mobility and stealth. Prioritize quick kills and kiting. Use traps and deployables to force spawn clusters into chokepoints. Be conservative with cooldowns; you are the only fallback for resets.
Squad play: Assign clear roles and call targets. Use one player as a mobile uploader guard who watches vents, one to handle heavy packs, and one to secure the extraction path. Coordinate EMPs with grenades to break shielded elites.
Communication tips:
Mark where the uploader will happen before you start it.
Call out heavy targets by callout (e.g., “upper vent heavy left!”) and ping the map frequently.
If using voice, count down to upload times to synchronize cooldowns.
Advanced tips for consistent runs
Map memory beats meta: Learn the positions of two main spawn corridors and always face them during uploads.
Ammo economy: Conserve heavy ammo for shielded elites and minibosses; use primary for scouts.
Vertical dominance: Hold catwalks early and deny lower-level flanks. Height advantage massively reduces incoming damage.
Staggered revives: If someone goes down during extraction, stagger the revive by calling “cover” and placing smoke between reviver and threat to avoid wipes.
Pro performance hack: Use a low-profile approach to bait enemies into narrow corridors where AoE grenades or turret traps maximize effectiveness — one well-placed trap can turn an otherwise lethal wave into manageable cleanup.
Troubleshooting equipment and progression blockers
If the mission repeatedly fails due to overpowering enemies, check these items:
Mods: Are you using armor-penetration or anti-shield mods? If not, shift loadout accordingly.
Skill levels: Mobility and crowd control skill ranks greatly reduce mission difficulty; priority upgrades here yield better returns than raw weapon damage increases.
Squad imbalance: Too many high-damage low-survivability builds fail more often than balanced comps. Swap one DPS for support if you find wipe rates high.
If you cannot acquire the Snap Hook after many runs: It’s rare but RNG-based. Focus on completing optional mission modifiers or increasing difficulty for higher loot-tier chances.
Frequently Asked Questions (FAQ)
What level or power should I have for Lost in Transmission?
Aim for the mission recommended power or slightly above. If you’re underpowered, favor tactical avoidance and stealth rather than head-on fights.
How can I get the Snap Hook reward?
Snap Hook is a rare drop from quest completions and high-tier loot caches in Control Tower A6. Increase the mission difficulty or complete speed/accuracy objectives to raise drop tiers.
Is the mission soloable?
Yes — Lost in Transmission is soloable with a mobility-focused kit and patient kiting. Use the maintenance shaft bypass to avoid heavy artillery spawns.
Which rooms are the most dangerous?
The Atrium and Relay Core during the upload are the critical risk zones due to heavy spawns and artillery. Secure upper catwalks to minimize incoming pressure.
My upload timer glitched. What do I do?
Try moving off the console and re-interacting. If that fails, temporarily leave the room and return. If the mission remains stuck, restart the run.
Any tips for speedrunning the mission?
Chain mobility tools (dash, grapple) and avoid unnecessary clearing. Start uploads only when main approaches are clear and use the maintenance shaft bypass to skip the atrium.
What’s the best way to handle shielded elites?
Use armor-penetration rounds, flanking, or EMPs to disable their shield systems. Staggered focus fire from multiple teammates is the fastest route.
Are there any safe spots during extraction?
Crates and catwalk cover near the extraction pad provide temporary shelter; do not occupy the pad until countdown begins to avoid being overwhelmed.
Closing — plan for next runs
To keep improving your completion times and loot quality:
Repeat the mission while focusing on one skill at a time (e.g., traverse mastery, upload defense, melee suppression).
Record your runs and review where you get stuck. Small routing adjustments shave minutes off the total run.
If you want, I can create a condensed printable cheat sheet with the fastest room-by-room path and a simple loadout checklist for pocket reference during runs.
Good luck out there — hone your route, stack mobility, and watch for the Snap Hook.
Printable One-Page Cheat Sheet — Lost in Transmission (ARC Raiders)
Title: Lost in Transmission — Quick Cheat Sheet Slug: arc-raiders-lost-in-transmission-cheatsheet One-line goal: Reach the downed relay, complete the upload, and extract with minimal fights.
Recommended Power: mission rec or +1 to +3 above
Primary focus: mobility, upload defense, vertical control
Top rewards to chase: Snap Hook reward ARC Raiders, mobility mods, components
Key icons (use when printing): ⚡ = mobility, 🛡 = defense, 🎯 = priority target, ⏱ = timed
Quick route (3-line): Drop Bay → Maintenance Corridor A (left) → Relay Core (use side alcove) → Shaft Bypass → Extraction Corridor (eastern catwalk).
Essential loadout (solo)
Primary: close-range AR/SMG (high RoF).
Secondary: shotgun or burst SMG.
Utility: dash/grapple (⚡), deployable heal/shield (🛡), stun/EMP (🎯).
Essential loadout (squad)
Tank: high HP, AoE grenade, anchor shields.
CC: EMPs, slows, trap deploys.
DPS: sustained RoF, ammo economy.
Mobility/Scout: grapple + quick pickup.
Room-by-room micro (short)
Drop Bay: clear scouts; move fast.
Maintenance Corridor A: hug left alcoves; ping vents.
Relay Entry Chamber: set a trap at east doorway.
Relay Core: uploader on left cover; one watcher on upper vents (⏱).
Shaft Bypass: use to avoid Atrium artillery.
Atrium Edge: expect a miniboss; stack armor.
Extraction Corridor: place cover traps; don’t stand on pad early.
Upload phase priorities
Kill: suicide drones → repair drones → shielded elites → siege units.
Defensive play: hold choke, control upper vents, rotate covers.
Mobility tricks (⚡)
Chain dash → grapple → vertical boost to skip turret LOS.
Cancel elevator mid-ascent to drop to maintenance loft.
Use Snap Hook to bypass lower corridors and reach catwalks faster.
Common fixes (fast)
Upload stuck: step off console and re-interact.
Extraction not starting: clear vents, then re-initiate from different angle.
Falling/clipping: rejoin session or restart run.
Speedrun one-liner: Rush relay, minimal clearing, kite during upload, shaft bypass, chain mobility to extraction.
Speedrun Checklist — Lost in Transmission (compact, tape-to-hud)
Preparation
[ ] Power ≥ mission rec
[ ] Mobility tool equipped (dash/grapple) ⚡
[ ] One stun/EMP or throwable for crowd control 🎯
[ ] Consumables: 2 heals, 1 throwable
Loadout rules
[ ] Primary: high RoF AR/SMG
[ ] Secondary: short-range burst
[ ] Utility: cooldown reduction perks active
Start (0:00–0:15)
[ ] Sprint maintenance corridor A using dash+grapple
[ ] Kill only patrols blocking main path (prioritize turret operators)
Relay approach (0:15–0:45)
[ ] Pre-scan for shielded elites; if none, start upload
[ ] If elites present, bait into trap and clear quickly
Upload (0:45–1:30)
[ ] Position uploader on left cover; watcher holds upper vents
[ ] Focus priority targets: suicide drones → repair drones → shielded elites
[ ] Use EMPs/throws to control choke, conserve heavy ammo
Data pickup and bypass (1:30–1:50)
[ ] Grab data, go immediately into Shaft Bypass
[ ] Avoid Atrium; if miniboss spawns, burst DPS and move
Extraction (1:50–2:30)
[ ] Chain Snap Hook/grapple to extraction catwalk
[ ] Place smoke/cover behind pad, hold until countdown
[ ] Use last stuns to delay flanks
Speedrun rules (do not break)
[ ] Do not clear non-essential mobs
[ ] Use mobility cooldowns aggressively
[ ] If you die, quick restart is faster than a salvage attempt
Optional time-savers
[ ] Skip Atrium entirely using Snap Hook (if unlocked)
[ ] Pre-bind grapple + dash macros for consistent chaining
Personal best tracking
Time run: ______
Notes (what broke the run): ___________________________
Squad Role Card Set — Lost in Transmission (3–4 players)
Role 1 — Anchor / Tank
Primary responsibility: Hold choke, soak agro, protect uploader (🛡)
Loadout highlights: high HP, shield generator, AoE grenade
Core actions: deploy shield at uploader, call out heavy spawns, body-block miniboss slams
Perk priorities: damage reduction, cooldown on defensive gadgets
Role 2 — Crowd Control Specialist
Primary responsibility: Deny spawn corridors, disable repair drones and shields (🎯)
Loadout highlights: EMPs, trap deploys, slows; moderate DPS
Core actions: EMP upper vents at upload start, set traps on shaft exit, interrupt repair drones
Perk priorities: cooldown reduction, ability range increase
Role 3 — Damage Dealer / Cleaner
Primary responsibility: Clean waves and burn shields quickly (🎯)
Loadout highlights: sustained RoF weapon, armor-penetration mods, high mag size
Core actions: focus shielded elites, burst miniboss, maintain ammo economy
Perk priorities: armor penetration, reload speed, headshot damage
Role 4 (optional) — Mobility Scout / Uploader Guard
Primary responsibility: Secure alternate routes, rapid response, extraction runner (⚡)
Loadout highlights: grapple/snap hook, high mobility kit, small utility for pickups
Core actions: secure upper catwalks, grab data if safe, use grapple to extract early cover
Perk priorities: movement cooldowns, reduced fall damage, grab speed
Squad callouts (compact)
“Uploader status”: Start / 30s / 10s / hold
“Upper vent heavy”: call direction + number (e.g., “upper vent heavy left”)
“Miniboss”: Name, health% (e.g., “Miniboss 70%”)
“Extract in”: countdown and who is on pad
Revive rules
Priority: revive nearest low-risk player first. If reviving on pad, create cover smoke or bait spawn away first. Call “cover” before reviving.
Simple engagement flow for squad
Move as staggered pair to avoid grenade wipes.
Assign one watcher to vents before starting upload.
Tank holds relay choke; CC specialist drops EMPs at spawn waves.
DPS burns priority targets; Mobility Scout secures fallback routes.
At extraction, Tank anchors pad; Scout secures approach with grapples.
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