Well.. that's going to be much, much more difficult. There are very few people who have ever pulled that off successfully, like 1 or 2.
You have to model the whole hangar and everything in it. You have to setup animations (if you want them) and render those. It's going to be even more complicated if you want to populate the hangar with people. Once that's all done you need to create the anims in the right format, create a mainhall.tbl and place the anims in the right spot, make a mask, and hope it all works.
I would probably be the one to write such a tutorial because I dont' know of anyone else (yet) who has gotten as close to finishing full hangar mainhalls. I know there are a few in progress that I'm looking forward to though! My work has taken months, maybe more than a year.. I've lost track. I would say that you should just start by modelling the hangar. Once that's done let me know and I can walk you through the rest then.