leave all the precentage ♥♥♥♥♥ up to the pencil pushers at valve
but i think it would be cool if it had a 70/30 precent chance of teleporting the engies building to a random location and destroying it there?
it obvisouly wont teleport deep in enemy territory just teleport like in the next room over or on top of the catwalk (if the map has one of those rooms) ya know just far away enough to be an inconvieniance