Good missions for playing while learning the game?

[hamm]

There aren't any tutorial missions or anything right? So is there anything that's easy or basic enough that's good for learning the game? Also, I think I heard that you can import missions from the other games by the devs, and I got them all in a pretty cheap bundle on steam, so if there's anything like a tutorial or a beginner mission in any of those either, that'd be good.