I don’t know why but my aiming feels different than yesterday. Does anybody notice that too? Ok, I had a few drinks last night but that should not affect or wipe out my entire aim and muscle memory??
blame 343 
Which game are you talking about?
Halo 5, multiplayer.
There is a topic in the Halo 5 forums discussing possible issues with aiming in Halo 5, feel free to continue there