The old bug that enables an infinitely long line of closely-parked aircraft to explode in a chain-reaction at the speed-of-light has returned. This was squashed in one of the more recent games in the series, but now it appears to be back.
I would venture to guess that this is also why when two aircraft have a mid-air collision and one of them explodes, it kills the other aircraft, too. Realistically, one of the aircraft should sometimes survive.
For one, there should be a delay between one aircraft exploding and the next.
Second, there should be a randomness to the amount of damage done by an aircraft explosion. Like a line of badly-arranged dominoes, eventually the domino-effect should reach a terminus.