Put this clip just before the action peaks, after an enemy warning and before the attack lands, so it marks the shift from scouting to holding ground. Follow it with a planted-bomb cue or an alarm to raise the stakes, then let the gameplay carry the defence on its own.
Über diesen Sound
This short German voice clip is a Prussian sapper callout saying 'Bereitet die Verteidigung vor', lasting just under three seconds. It feels tense and rallying, like an order barked as an attack is about to begin and everyone must take position. The clipped delivery makes it sound urgent, focused and ready for a defensive stand.