Today I spawned during a TDM and was completely unable to fire!
Nobody could see me, enemies could pass through me, the only thing that could shoot me I think was a turret but it died before it could kill me!
Because I was unable to perish I stayed like this till the end of the round. When it went to show the last kill player there was no-one there, the screen was darker and mostly blurry.
I pressed escape to see if I could click on menu's and was able to so t wasn't my mouse or input in general. After that match was over everything was normal again.