Place it near the end of a match edit, after an Enemy Spotted callout and just before the final push, then follow it with the Inception Horn as the clock runs out to close the edit.
About this sound
This is a 1.5-second voice line from Halo Reach that announces one minute remains in a match, using the game's multiplayer countdown call. It gives a tense, urgent feeling, like the final stretch of a close game where every second suddenly matters and players rush to finish. The line comes from Halo Reach multiplayer, marking the last minute before a match ends.