i feel like pushpop might be the most useless thing ever
like unless you're in a zombie game or melee deathmatch or something but even then the zombies or melee attackers could just walk back up to you
like, it's not even super useful against shotgunners. if a guy with a shotgun got close enough to you for the pushpop to genuinely affect him and then shot you even if the pushpop was affecting him and he was careening backward through the air he'd still be close enough to do a stuff ton of damage and probably could kill you with a second shot