Talk:Challenge/@comment-25078341-20140707002400

Yes, enemy planes flying really low won't crash into the ground in the Alps map. And the challenge timer that keeps running is normal, because the game can't spawn all enemies at once without causing FPS dropout on the PS3. The dropout is noticed specially in the Aigaion special mission, due to the concentration of targets.

I ran Tokyo Martial Law with a real crack team that managed to kill everything REALLY fast, and it took some time to appear all targets. Unrelated to the special mission event. The AWACS narrator even said 'all targets destroyed' before the special mission.

You should check your wide-area radar, if the timer is still running, is due to some AA gun forgotten on the other side of map.