simple yo!use the chopper,take out the speedboats,then you'll have 7min to bust the
cargo.Throw the copper away by jumpin out and pressin triangle.Then get to each side of 2
doors and bust the doors open.Then,get to the tall tower take control of the gun on
top,shoot the farthest cargo,take out ur grenade launcher,and shoot the closest one.Don't
really worry about hostles sneaking up behind you.A comrade will eventualy come to cover
you but once he dies keep ur eyes on the map if you haven't busted the cargo yet.I know
this is pretty long but trust me...itl help...

i think this explination will kinda help but itl really help if you get it.