Would it be possible to add upgrades and more buildings than just the ip to the marine team the same way it's done with the ip? I'd really want to fight marines that have more than level 1 of everything and only an ip.

Sure. Do what everyone else does and build them up and then switch teams

That's what I do right now. I wish buildings were randomly placed at the cost of res !

i'm lucky to have a friend close by and 2 pcs in same room so normaly were both marine so we get buildings easily anyway i think its something i said allready about this that prevents them uilding something about the gui i think maybe you should search "building" via the forums search(what i said chesseh said first so credits to him)