Place it at the very end of a fail sequence, after the last mistake has played out. Open the sequence with Enemy Spotted to build the threat, then let this clip close the attempt, and follow it with Roblox Oof for an aftershock.
About this sound
This is a short 1.8-second game-over voice clip from Halo Reach, a single spoken line that marks the end of a failed attempt. It feels abrupt and final, with a dry, matter-of-fact tone that makes a wipe land harder. The sound comes from Halo Reach, where it plays when a run ends.