Place it at the payoff of a fail sequence, after building tension with the enemy spotted sound button, then follow it with the nope meme sound button for a teammate bailing out in response to the callout.
Über diesen Sound
A very short voice clip of Scout saying this is a freakin embarrassment, delivered in his fast, cocky Boston accent. It lands as pure secondhand embarrassment and mockery, the kind of line that makes a bad play feel even worse because Scout sounds genuinely disgusted by what he just saw in Team Fortress 2.