If any one knows how to make a building of your own or an infantry unit please tell me sine I know how to make vehicle, planes and ships but I would really like to make a building.
Make your building in RenX. Name all your exteriorors "(prefix)#(meshname)". Name all your interiors "(prefix)^(meshname). Temp or add a building controller in commando, and set the mesh prefix to whatever prefix you typed in. Then just set it up from there.