UPDATE:
I finished the building.. the only thing i need to do is make a few walls on the platform.. that's all.. after that i will make the landscape (that can be found in the screenshots in my last update)
http://img192.imageshack.us/img192/6256/halo2l.png
I remade the whole foundation of the building and I edited some small things at the small tower... was a lot of work lol tho is doesnt seem like much '-_-