Put it at the start of a push sequence, after Enemy Spotted and just before the main action, then follow it with Bomb Has Been Planted to keep the sequence moving toward the objective.
關於此聲音
This is a brief Halo Reach cue lasting under a second, built around a single sharp assault signal that cuts straight through a quiet moment. It feels tense and urgent, like the instant a firefight is about to start, putting the listener on alert without any buildup. Taken from Halo Reach, it carries the game's direct combat energy in a very short burst.