Wasting three raids on unrelated industrial rooms is the quickest way to delay Ascending the Mountain, particularly when your stash is already short on healing supplies and ammunition. The Rocket Thruster is not a material worth chasing through every warehouse; its value comes from choosing a compact route and leaving before extra fights consume the run. Check ARC Raiders BluePrints for broader item planning, then treat this search as a targeted Stage 2 operation rather than a general scavenging trip.

Stage 2 Changes the Value of Every Raid

Ascending the Mountain requires one Rocket Thruster during Stage 2, alongside Wires, Voltage Converters, and Sentinel Firing Cores. That combination creates a resource-planning problem: carrying the thruster is more important than filling every inventory slot. A successful run with one required component is better than a full pack lost during a late firefight.

The item becomes especially important when your project storage is nearly ready for submission. Do not spend rare healing items clearing distant buildings after finding it. Once the thruster is secured, preserve armor durability, avoid optional elite encounters, and select the extraction point with the shortest exposed approach.

Read the Loot Layout, Not the Building Name

Rocket Thruster searches favor places linked to machinery, rocket equipment, workshop shelving, and technical storage. On Spaceport, Rocket Assembly is valuable because several relevant containers sit within one warehouse route. Inspect loading dock racks, rear shelves, breachable panels, and elevated storage before moving elsewhere.

Vertical checks matter more than speed. A floor-level sweep can miss an item placed on a high rack, forcing another raid despite having searched the correct structure. Climb only after checking nearby threats, since standing on a platform during an alert can turn a simple loot stop into an expensive retreat.

Enter Rocket Assembly and clear the nearest access lane.
Search the loading dock rack, then inspect upper shelves and rear storage.
Check technical containers beside rocket machinery before rotating out.

1) Keep one inventory slot open before entering a high-value technical area.

2) Carry enough healing for one fight, not a prolonged warehouse sweep.

3) Leave immediately after securing the thruster unless another Stage 2 item is nearby.

When Riven Tides or Stella Montis Wins

Port Authority on Riven Tides is the strongest fallback when Spaceport is crowded or its approach is exposed. Carts, upper shelves, and technical containers are concentrated around the main port structures, allowing a short inspection route. The coastal layout also supports collecting other project materials, so the raid can remain productive even when the thruster does not appear.

Stella Montis suits players pursuing a wider component list rather than one urgent objective. Assembly Workshops can reward a useful spread of mechanical parts, but the route often takes longer and may demand more movement between rooms. Choose it when you also need Shredder Gyros or similar components; choose Spaceport when the project deadline is the priority.

Use Port Authority when its nearby extraction route is safer than Spaceport.
Choose Assembly Workshops when several mechanical objectives overlap.
Skip distant side buildings if the first concentrated storage cluster is empty.

Extraction Discipline Beats Greed

The most common mistake is confusing a location objective involving rocket equipment with the actual Rocket Thruster item. Visiting the correct area does not complete the project requirement. Confirm that the item is in your inventory, then stop taking unnecessary fights or opening low-value containers.

Map conditions can change route risk, but they should not override basic efficiency. A technical event may increase the appeal of industrial zones, while heavy enemy activity can make a quieter alternative superior. If your armor is damaged or healing has dropped below two usable charges, extraction is usually the better decision.

Players who need a guaranteed shortcut should compare the cost of another raid with the value of buy ARC Items before committing to repeated searches.