: As vagueness notes, that's a tricky issue. Halo 4's heavily crate-based ammo
: distribution isn't a design I'm fond of, but it's what the game was
: designed around. Leave weapons persisting healthily on the ground, and it
: might be too easy without other adjustments.

For some reason I assumed the question was about multiplayer, so that's what I was thinking of, but that's a good point, it would change the dynamic in campaign and to a lesser degree Spartan Ops.