I've recently introduced the sim to some friends and we're having great fun with manual TMA, though missions last quite a while without time compression!
Do you guys make your own MP/Coop missions or is there somewhere else to download them? There's only a few missions in the download section here and the only place where I can more is from Subguru. But I think most missions over there are outdated, since we often run into problem like game freezes, stuck in loading screen etc. We just spent two hours trying to get the four of us into a mission, but to no avail.