Place it at the start of a match sequence to signal the action ahead, then follow with Enemy Spotted as the team moves in and Bomb Has Been Planted when the objective begins. Keep it as the opening cue so the later game sounds build the sequence.
关于此声音
This is the bright electronic notification chime associated with Counter-Strike 1.6, a short alert sound made to catch a player's attention between rounds. It feels instantly familiar and urgent, like a lobby filling or a match about to begin, and it carries a small rush of old-school competitive nostalgia for longtime players.