need help!!!

#1j88888Posted 4/25/2009 1:26:48 AM
I just got this game and my buddy and I are stuck on the castle in venezuela on the first mission. We've killed everyone but can't get through the barricade. I read somewhere online that the helicopter comes in and blows it up but we're not sure how to trigger it to fly in...if you know, please help as its driving us crazy!!