I could see PvP being more enjoyable (even with the way it is currently) if Heavy Ammo was Removed entirely from every Gamemode of PvP. Most people use it as a crutch and it doesn't require much skill to use a rocket or a Sleeper Simulant (I'm looking at you Gambit Players). Speaking of, Heavy Ammo could also be removed from Gambit, though I don't know how the games would go if the boss couldn't be melted with Sleeper, Whisper, etc, but I do know that it would solve the Invasion Problem and Sleeper wouldn't have to be nerfed.