The Grenade Tube is a military-style, long, thin tube-shaped container, designed to hold grenade ordnance and combat equipment. Where it is found seems to have little semblance to what is inside. For example, it can be found in Space Travel and Town Hall sectors of Buried City, and Launch Towers in Spaceport. Niche distribution, but what's inside makes it worth knowing about. The listed loot pool includes Grenade, Medium Gun Parts, and Sensors, solid combat-oriented drops across the board. But the Grenade Tube's real value is what sits on top of that: Heals, Quick-Use items, Mods, and other active gear can all drop here. This is a container that gives you things you'll actively use in the field, not just materials to bring home and process. A Mod or a Heal pulling from a Grenade Tube mid-run can directly change how the rest of your wipe plays out! That combat-ready loot profile makes it a different category of container from most on this list. Where something like a Cargo Drawer or Electrical Box feeds your crafting queue, a Grenade Tube feeds your loadout. If you're running low on grenades, heals, or quick-use items, this is a priority stop. Always loot a Grenade Tube if you see one. They're not the most common container and they're geographically limited, but the upside per loot action is high. Learn the spawn locations in Space Travel, Town Hall, and Launch Towers and build them into your routes through those sectors. You won't regret it.