Well, after finally getting through it, I had a lot more success during the next mission. The second tutorial mission is just really, really annoying on Commander difficulty. The map is set, but encounters aren't (and I got unlucky and got a lot of them before the objective), the objective is timed, and you have all Rookies. It is a really annoyingly difficult map. But it does actually teach you a lot about tactics for the game by the time you get through the half dozen resets it takes to finish it.

Anyway, what I'm probably going to do is run through the tutorial missions (because I love the story elements, way better than Enemy Unknown), then restart with the tutorial off and try to take on Veteran mode from there.

If I get done with my homework, I'll run through the tutorials today, and have them uploaded by the end of the day. If not, I'll run them after work tomorrow.