Campaign Screens in game, HELP!

I am having trouble getting the campaign screnes in-game and would like to know how to put them in and I would also like the model files of them all.

Not clear enough.

I think you mean the 3D backdrops to each of the campaigns.

To get them ingame you have to make a doodad and for its model find them under the Extra tab.

I might not do so through because all sorts of problems arise such as if you want units to walk on them etc they have no collision detection and you cant give it to them