I had an idea about infantry occupying civilan buildings when EA anounced in the october podcast about squads and how only 2-4 squads can occupy a building at a time. Well here's my idea, depending on how many floors there are in each building has thats how many squads a building can hold, and the order that the squads first soldier enters the building determines which floor they are on. For example, say there's a three story building with roof access in strategic location that your enemy has to pass to get to your base, here's how I would deploy my forces, first send in a Rifle squad to take the first floor, then send a Missile squad to take the second floor, then another Rifle squad to the third floor and finaly a sniper team to the roof.