About Caliber Fifty: It's twenty years after the end of the Vietnam War. Your mission, should you decide to accept it, is to venture forth once again on the Ho Chi Minh trail and try to rescue some of the downed American airmen left behind. Helicopters, tanks and fighter jets will also hunt you down. To defend yourself, you must avoid making contact with enemies and their gunfire while blasting away as many villagers, vehicles and soldiers as you can. [more]