I just grabbed this game off steam and me and my friend are trying to start the co-op campaign, but everytime we try it just says "One or two xbox controllers need to be plugged in." We have one plugged in though.
I'm on keyboard, my friend is on controller, this is how it is with a couple other games on steam for local co-op and those work fine.
Anyone else have this problem or know what's going on? I really wanted to hit this campaign up.