I blew up a plane and it fell over the left edge of the map and then just kept falling even after it had fallen past the ground. It would be nice if you didn't play the same exact map over and over again. Also, there needs to be a monetary reward for completing the optional objectives. Otherwise when you do the ones where you don't have to kill people (i.e. the satellite) you don't get any money for the "round".
It's not for everyone. Thanks for playing.