I have had, a few times now a reloading glitch. It just won't let me reload. Or the shooting glitch when I cannot fire, I got maximum nanosuit, I was on a nine killstreak, came up behind two people, tried to shoot, but it didn't. Result: they both turned around and shot me!

Did you melee or stealth kill someone right before the incident? If so, I have experienced this many many times. Some times I can just switch weapons and it goes away. Other times I have to kill myself or run out in the open and get myself killed in order for the glitch to go away.

Now I have gotten myself in the habit of weapon switching after each and every melee / stealth kill. True story.

samehappens to me every day dunno y tho

Most of the time this is the cause of really bad lag, yet I have been the victim of other incidents resulting in this, like me and a teammate once picking up the exact same weapon at the exact same time, yet all I got was an empty shell of the weapon he picked up, resulting in a weapon with full ammo that I was unable to switch from, melee with or even aim with.