Alright, this may sound dumb but im trying to figure out how to get to the real coop missions, where you get to use guns,knife and able to knock out guards, or do you really have to go through the stupid spy missions where you obtain information to unlock them, thanks

There aren't any. If you want those type of missions then get it for a last-gen console, or go back to CT.

wow, that sucks

Yep. A lot of us PC users campaigned for the next-gen version to be ported to PC, and it turns out that we should have let them port the last-gen version.