Fly into range of a standing wall and press X — the same key that swings at the Breachstone, answering to whatever's actually in front of the drone — and the fitted weapon fires for real. The wall's own size sets its integrity, 29 to 68 HP across the five that stand today; the stock Single-Tube Flare Launcher takes 3 shots on the smallest and 7 on the largest, a Leviathan Lance takes 1 to 2, and a Siege Launcher can drop the largest in a single pull, spending its whole four-rocket salvo at once. Breaking one pays depth-tiered rubble on top of whatever it was hiding, and the wall comes back in fifteen minutes so the map can't be stripped for good.
The rule underneath all of it, stated plainly: a rock is never a gate. Whatever a wall hides is always reachable some other way — a rocket buys a shortcut and a payout, never progress you couldn't earn regardless. And the Breachstone stays exactly as exempt as ever: strike damage is flat across every rank, so the one place in this water gear buys no speed stays that way. Full numbers in the guide: Weapon & Rockets and Hazards, Wear & Repair.