i am stuck on mission 3 the oil refinery. i am on the last part where you have to save the hostage but the hostage is behind a big garage door. i have looked at all the walk thoughs that i can find and it says that you go in kill the rpg guy as quick as possible and the door opens and lets out 7 other guys. but the door has never opened for me i have tryed every thing i can think of but yet the door stays closed. can anyone help me out or send me somewhere to get help on it.