AverySmugleaf

So as we all know this game is glitchy as **** but while playing co-op on quarentine zone my friend and I noticed that I was walking into the wall shooting randomly however on my game I was just fighting normally. So in both of our games we were playing with our characters being controlled in different places it was like a lack of sync, when we got to the end of the level it was fixed but after completing the rest of the campaign we the game didnt noticed the game hadnt recorded us making any progress since the glitch, no achivemrnts either. Anyone else encountered this, or can any one sugest how to bring this to attention as i did not get a reply from halo twitter?