as stated do it on western europe, just immediately run and shut down the turret then open the big gate and the the second gate and you'll get the first checkpoint in about 60 seconds...then about 15 guys and a liquid.
make sure you get to the lil room for checkpoint.
it takes longer for the damn beginning cutscene!
I was up late last night partying until 6 in the morning, naked and with complete strangers. That was one hell of an Xbox live party.