Yep, that's a good idea too, Hazed. In fact, I'd make it so that if an attack was headed into the area of your base, the server should suddenly cancel your planned mission and generate a scramble-to-intercept mission to counter it. Turns the intensity up a bit, and keeps you guessing. Falcon 4.0 does this; you can be in the middle of planning your mission, based on the ATO you recieved, and suddenly find an enemy strike inbound to your area. "Flexibility is the key to air power," someone once said.