Even you have to admit that this trick is basically a game-changing exploit. Considering ammo awarded when switching is based on the ammo count at death? The Icebreaker's ammo exploit wouldn't be so bad if it couldn't spiral into an easy win from the first few seconds since quick use of a charged IB will give you a small car's worth of bullets. Six Icebreaker rounds goes to absurd ammo for other weapons. It's circumventing a rule everyone is expected to go by, thus invalidating an entire patch. At the end of the day, it may as well be a cheat.