okay, bear with me please. I just got Portal 2 after that DLC was released. I installed it and Steam automatically installed the DLC as an update. When I started the game and tried the co-op mode (after playing some single-player), there is no option to choose which maps I want to play. I can play the "Peer review" setting (which is the name of the DLC levels, isn't it?) but there is no way to choose the "old" co-op maps instead (which I have seen on YouTube reviews etc.). I'm pretty certain I'm missing something obvious here but I don't see, what...
TIA
SoWhy

