What would I expect from a demo like this? Simple, a short one mission demo with a bit of base building. Give me the default starting base, tell me I can detect aliens after building a couple of things, like a radar and research lab. I do that, the aliens are detected, I can launch an interceptor, shoot it down, and then engage the mission with alien positions and my start being randomly generated.

If the Tutorial is in the main game, which it might not, be, I expect to act like I did in Fallout 3, and make a save just after it.