Hotshot events have abuseable bugs

[Brondar Donyk]

I've found through all of the hotshot events that sometimes it glitches out, and after you run out of ammo for whatever weapon you are supposed to use, you will be able to continue the hotshot event using your own weapons and grenades, until you run out of ammo for one weapon. This is totally exploitable, as someone could go on to use both weapons, and their grenades, indefinitely, to rack up an unfair score--it may even account for the high scores.

[Blackwolfe]

O.o if what you are saying is true, it seems like another fix that was in the patch notes but never actually got into the game.

[Kitty Jamin]

The glitch has existed since launch, and they've known about it since then. So, i doubt it'll go away over night.