I am at the last Decker mission where he fight Matt decker and when he should go into a quick time event he just vanishes and then I have no one to fight. I have sat there for about 20 minutes one time and still nothing happens. I have also restarted it about 30 times as well as just leaving the mission and doing over again. Any ideas on a way to fix this. Or am I just fucked

Never heard of this happening

Sounds bad. Sometimes removing game patches will fix things like that. That's the only thing I can think of trying.

The game is playing you.

Yeah, exact same thing has happened to me. Pretty fucking annoying.