I try and wait for as long as possible to open the heavy ammo crate. but sometime it just prudent to open the crate so the other team doesn't get the Heavy Ammo. and with the new nerf to PvP heavy ammo that can change the match really fast as a lot of PvP players rely on Heavy Ammo to win and get their KD's. It is kind of fun watching so called "elite" Players becoming just average when denied their Heavy Ammo. I never knew so many of those players relied on their Rocket Launchers or Swords to inflate their KD's.In my humble opinion this proves that those "elite" players can't actually play in PvP with out the crutch of multiple Heavy Ammo Crates and are just so very very Average.