Place it right at the entrance beat in an edit, before any reaction shots land. Follow it with the FNAF jumpscare scream for a second scare hit, or switch to Enemy Spotted when the bit turns into a team callout instead.
About this sound
This is a loud, no-bass version of the Guest 1337 clip, running just over six seconds and built around a harsh, pushed volume that hits immediately. It feels chaotic and confrontational, the kind of blast that turns a normal moment into a fake emergency and gets a laugh from how overdone it is.