Subnautica 2 Tadpole Haul Chassis Locations and How to Unlock Them

 

Tadpole Haul Chassis Blueprint Locations Map Guide

This guide walks you through everything you need to know to find, scan, and build the Tadpole Haul Chassis in Subnautica 2. It covers preparation, exact search strategy, step‑by‑step navigation, survival tactics for dangerous zones, the crafting and installation process, recommended loadouts, troubleshooting, and advanced tips for using the Haul Chassis once it’s attached. The instructions are written so you can follow them in a single play session or break them into multiple runs. Expect clear, actionable directions and practical advice you can use immediately.

Why the Haul Chassis matters

The Tadpole Haul Chassis transforms the Tadpole from a nimble scout into a slow but powerful logistics vehicle. It adds significant storage capacity, extra passenger seating, and additional hardpoints for mounting portable lockers, oxygen generators, or other utility modules. If you plan to move large quantities of materials between bases, ferry teammates and gear, or run long resource hauls, the Haul Chassis is one of the most valuable upgrades you can unlock. It is not designed for speed or combat; it is a workhorse for deliberate, planned operations.

High‑level plan before you leave the Lifepod

Decide whether you will attempt the entire run in one outing or split it into two: the first outing to find the cave and the Depth Module blueprint, and the second to collect the remaining fragments after installing the Depth Module. If you prefer a single run, bring extra repair materials and be prepared for deeper dives. The essential objective is to scan three distinct Haul Chassis fragments; once scanned, the blueprint will appear in your Vehicle Fabricator or Vehicle Bay.

Gear and consumables checklist

Make sure your Tadpole is fully repaired and fueled. Bring a functioning Scanner, a Repair Tool, spare oxygen tanks, beacons, and a handful of food and water. Carry a few flares or distraction items if you have them. If you have already scanned the Depth Module blueprint, craft and install Tadpole Depth Module Mk I before attempting the deeper fragments; it raises your safe operating depth and reduces the number of risky swims. Travel light when you exit the Tadpole: the less you carry, the faster you can swim and the less time you spend exposed to predators and environmental hazards.

Understanding the fragment cluster and the region you’ll search

All three fragments are clustered in the eastern sector of the starting region, centered around the Alien Ruins and the adjacent wreck corridors. The cluster sits roughly one to one and a half kilometers east of the Lifepod. The first fragment is typically found in a deep cave beneath the Research Outpost and often shares the cave with the Tadpole Depth Module blueprint. The second fragment is usually located on a broken platform near a large Cicada wreck or similar ship section east of the ruins. The third fragment sits on a lower cliff or acid‑pool shelf beyond the wreck corridor and is the most hazardous of the three.

How scanning works and why it matters

Fragments only count toward the blueprint when you fully scan them with the Scanner equipped. Partial scans or glancing passes do not register. When you approach a fragment, stop, equip the Scanner, and hold the scan until the progress completes. If you are in the Tadpole, exit above the fragment and swim down to scan if the fragment lies below the Tadpole’s crush depth. Always confirm the scan completion sound and HUD notification before leaving the area.

Detailed route and navigation strategy

Start at the Lifepod and set a mental or in‑game waypoint for the Alien Ruins roughly 1,200–1,320 meters east. Approach the ruins from the west so you can keep the Tadpole above crush depth and use the ruins as a landmark. When you reach the ruins, look for a large cave mouth beneath the platforms and wreckage. Keep the Tadpole hovering above the cave entrance and exit to swim down. The first fragment is often on the cave floor near manufactured debris and may be adjacent to the Depth Module blueprint. Scan both items while you are there.

After scanning the first fragment and the Depth Module blueprint, return to the Tadpole and craft the Depth Module if you have the materials. Install it and test the Tadpole’s new safe depth by descending slowly and watching the hull integrity. With the Depth Module installed, follow the wreck corridor east of the ruins. Look for a large Cicada wreck or a ship section lodged in rock outcrops; the second fragment is commonly found on a broken platform or railing near that wreck. Use the Tadpole camera to scan the wreck from a safe distance before exiting.

From the second site, head toward the acid pools or the Angel Comb route that runs northwest from the wreck corridor. The third fragment is usually on a lower cliff shelf or near acid pools where manufactured debris has collected. This area is deeper and more hazardous; use beacons to mark your exit and the Tadpole camera to scout the cliff face before you surface. Swim down with the Scanner and complete the third scan.

Step‑by‑step actions for each fragment site

When you arrive at the cave beneath the Alien Ruins, park the Tadpole above the entrance and place a beacon on the surface to mark your exit. Exit with only the Scanner and a beacon. Swim down slowly, keeping an eye on your oxygen and the cave layout. The fragment will be on or near manufactured material; scan it fully. If the Depth Module blueprint is present, scan it as well. Return to the Tadpole, craft and install the Depth Module, and repair any hull damage.

For the wreck corridor fragment, approach the Cicada wreck slowly and use the Tadpole camera to identify platforms and railings. The fragment is often tucked against a railing or on a small platform; it can be easy to miss if you only circle the wreck. Exit and swim to the fragment with the Scanner, complete the scan, and return to the Tadpole. If predators are present, use short bursts of sprint and deploy flares if needed.

For the cliff/acid‑pool fragment, mark your exit with a beacon and use the Tadpole camera to find a safe approach. Acid pools and cliff faces can hide fragments behind overhangs; scan methodically and check under ledges. The third fragment is the most likely to be in a hazardous micro‑environment, so keep your swim times short and your oxygen topped up.

Crafting the Haul Chassis: materials and process

Once all three fragments are scanned the Vehicle Fabricator or Vehicle Bay will display the Haul Chassis blueprint. The in‑game fabricator shows the exact materials required for your save, but commonly reported components include Titanium Ingots, Strontium, Enameled Glass, and a Dedicated Core. Gather the required materials, build the chassis at the Vehicle Fabricator, and then dock it to your Tadpole. After docking, the Tadpole will gain the Haul’s cargo pods, additional seats, and the extra hardpoints.

Fitting and configuring the Haul Chassis

After installation, configure the Haul’s hardpoints to match your intended use. For long resource runs, mount two portable lockers and an oxygen generator to maximize storage and survivability. For transport runs, prioritize seating and beacons so you can ferry teammates and mark drop points. If you plan to use the Haul for base logistics, consider mounting a work light and a small fabricator module so you can perform quick repairs and crafting without returning to base.

Tactical movement and predator avoidance

The Haul Chassis reduces speed and maneuverability. When traveling through predator zones, keep a safe distance from known Leviathan paths and avoid narrow canyons where the Haul can become trapped. Use the Tadpole camera to scout ahead and place beacons at regular intervals so you can find your way back if you need to surface or retreat. If a large predator attacks, prioritize escape over combat; the Haul is not designed for fighting. Repair the Tadpole immediately after any hull damage to prevent cascading failures.

Co‑op strategies and role division

In multiplayer, split roles to maximize efficiency. One player pilots the Tadpole while another exits to scan fragments. For the cave and cliff fragments, have the pilot hold position and monitor the camera while the scanner completes the scan. For the wreck corridor, the pilot can circle slowly while the scanner moves between platforms. When transporting teammates, assign seats and stow critical gear in portable lockers so passengers can disembark quickly and continue working.

Troubleshooting common problems

If a fragment does not register after you think you scanned it, return and scan again from a slightly different angle; fragments can be partially occluded by wreckage or terrain. If the blueprint does not unlock after three scans, double‑check that you scanned three distinct fragments rather than scanning the same fragment twice. If the Tadpole reaches crush depth and takes damage, exit and swim down to the fragment instead of risking hull breach. If you lose the Tadpole or it becomes irreparably damaged, use beacons and the camera to locate it and perform emergency repairs.

Advanced tips for efficient runs

Plan your route so you minimize long swims. Use the Tadpole camera to identify fragment locations before exiting. Place beacons at every exit and at intermediate waypoints so you can quickly return if conditions worsen. If you have multiple bases, stage repair materials and portable lockers at a nearby outpost to reduce the need to return to your main base between runs. When hauling resources, consolidate items into portable lockers and use the Haul’s cargo pods to move large stacks in a single trip.

How to use the Haul Chassis after installation

Use the Haul Chassis for scheduled logistics rather than ad‑hoc exploration. For base expansion, load building materials and move them between bases during calm weather windows. For co‑op missions, use the Haul to ferry teammates and equipment to remote build sites. When moving rare resources, travel during low predator activity and avoid deep canyons where the Haul’s slow speed makes it vulnerable.

Maintenance and long‑term care

Keep spare repair materials on board and check hull integrity before every long trip. Periodically inspect the Haul’s hardpoints and portable lockers to ensure they are not damaged or lost during rough maneuvers. If you plan to use the Haul for extended operations, consider building a small mobile repair kit and a backup oxygen supply in one of the portable lockers.

When things go wrong: recovery and salvage

If the Tadpole is disabled or lost, use beacons and the camera to locate it. If the vehicle is salvageable, perform repairs and tow it back to a safe area. If the Tadpole is destroyed, you will need to rebuild and reattach the Haul Chassis; keep a record of the materials required so you can recover quickly. If you lose a fragment or cannot find it again, retrace your route and search wreckage and cliff faces methodically; fragments are often tucked against debris or under ledges.

Mod and community considerations

If you use mods, check whether they alter fragment spawn locations or blueprint requirements. Community maps and shared waypoints can speed up the search, but this guide is written to work without external maps by using landmarks and the Tadpole camera. If you play with friends, coordinate roles and share beacons to reduce search time.

Final checklist before you head out

Confirm the Tadpole is repaired and fueled, the Scanner is functional, beacons are ready, and you have spare oxygen and repair materials. If you have not yet scanned the Depth Module blueprint, prioritize the cave beneath the Alien Ruins on your first run. Keep your inventory light when you exit the Tadpole and always confirm each fragment scan completes before moving on.

FAQ

How many fragments do I need to unlock the Haul Chassis? You must scan three distinct Haul Chassis fragments to unlock the blueprint. Each fragment must be fully scanned with the Scanner equipped.

Where are the fragments located? Fragments are clustered east of the Lifepod around the Alien Ruins and adjacent wreck corridors. Expect one fragment in a deep cave beneath the Research Outpost, another on broken platforms near a large wreck, and a third on a lower cliff or acid‑pool shelf beyond the wreck corridor.

Do I need the Tadpole Depth Module? The Depth Module Mk I is strongly recommended. The first cave often contains the Depth Module blueprint; crafting and installing it extends your safe operating depth and makes the remaining fragments far easier to reach.

What materials are required to craft the Haul Chassis? The Vehicle Fabricator will show the exact materials for your save after you scan all fragments. Commonly reported components include Titanium Ingots, Strontium, Enameled Glass, and a Dedicated Core. Always verify the in‑game recipe before building.

Can I use the Haul Chassis for combat? No. The Haul Chassis is designed for storage and transport. It is slow and less maneuverable, so avoid combat and prioritize escape and repairs if threatened.

What if a fragment won’t register? Return and scan from a different angle. Fragments can be occluded by wreckage or terrain. Confirm the scan completion sound and HUD notification before leaving.

Is co‑op helpful for this run? Yes. In co‑op, split roles: one player pilots while another scans. This reduces risk and speeds up fragment collection.

Closing notes and encouragement

The Tadpole Haul Chassis is a game‑changer for players who want to scale base building and logistics. The search and scan process requires careful navigation and a measured approach, but once you have the chassis attached, your ability to move materials and teammates will expand dramatically. Take your time, use beacons and the Tadpole camera, and treat each fragment run as a deliberate mission rather than a rushed sprint. With the right preparation and the tactics in this guide, you’ll have the Haul Chassis attached and operational in a few focused sessions.

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