1. Melee button does not trigger melee attack.
This glitch would happen if I died and had to replay an area, which for me is a problem because if an enemy gets close I like to punch them to death. I'd pound the melee button, but nothing would happen, and it would only start working once I got to a new area.
2. NEGATIVE ammo for SCAR/SCARAB.
I have no clue what could trigger this glitch, but somehow the SCAR and SCARAB weapons would have negative ammo when I picked them up. I thought that it was just a display glitch and picked up some ammo from a nearby supply crate, only for the ammo to go to zero. I couldn't fire the thing, and when I tried to pick up some more ammo it would say I had the maximum amount of ammo for this weapon. The only way I found to fix this was to go the the single player menu, choose campaign, and replay mission.
Anyone else have these glitches? Anyone else have any weirder ones that deserve to be patched?