See: this video by datto. https://www.youtube.com/watch?v=sHfCGU7zA24

Exactly what I said would happen.

I also have the solution to all ammo woes. This will solve everything, including machine guns in skirmish. Ready?

1. Return special ammo on spawn.
2. If you kill someone using a special weapon with your primary and only with your primary, you get their special.
3. If you kill someone using a heavy weapon with your primary weapon or your special weapon (but not your heavy), you get their heavy.
4. More zoom on all snipers across the board.

Try it out Bungie! This allows comebacks and gives teams a chance to prevent ammo hoarding and rampages if they can make good plays, but isn't overpowering because that guy with the machine gun doesn't get ammo drops.