The drones just warp, they don't "initiate" collisions. It's pretty simple- due to lag, everyone sees everyone else in a slightly different position, at a slightly different time. The game, and collision detection, depend entirely on what the code sees on the computer it's running on. If you see yourself occupying the same position, at the same time, as another plane/vehicle, you will collide. If the other player sees his plane in the same space and time as your plane, he will collide. While there are sometimes nearly simultaneous collisions, normally someone sees a near miss, and someone sees a hit, and then someone whines about being rammed. The end.
