I read a lot of the wiki but didn't find anything on there about what the single player mode actually does.

I can build things myself. Do the bots not build anything? Is there something I am supposed to do with the little bot icons in the springlobby before I sart the game?
I would actually like to know how to play the game before I start trying to play online. Is there an actual manual anywhere that tells these types of things? Like what each of the items does that you build and so on?
Thanks