I have been playing this game regularly for a week and I still can't figure out how to use the bombers. I see all the levels have them and I can tell where they are (marked by 3 little airplanes on mini map) but how the heck do you use these things? Everytime I try to enter the little radar station nothing happens. Last night I sat at the door the whole game waiting for something to pop up or the door to open and nothing ever happened.
Am I doing something wrong? Do I need to activate something else to get into the control room? It's possible I'm an idiot and am missing a red herring because I see them flying around all the time so I know most people know how to use them.