A flying dick if you'll ever see one, gliders trigger no warning, and can be seen only by direct line of sight. Unless you're dropping into enemy AA guns, you'll likely succeed. After landing, a wide varaity of usefull stuff will spawn: from riflemen, to machine guns, to pack guns. Even mortars and commandos will join the party, along with a nifty resupply crate if you ever live long enough to run out of ammo. The sudden appearence of the best infantry in the game behind enemy lines should be used wisely, as there is nothing from stopping the enemy from sending every spare tank in your direction to clean up the mess you've made of his production and storage areas.