Museum Hostage situation:
Stay in the hallway till you see Mara. Aproach slowly
with the walk button. Equip the sniper rifle, aim in
first person view mode. Aim for her gun. Then
after that situation is defused climb up the dino's
The Way to kill the flame thrower boss is in first
person aiming at the pack on his back.
Once you get past the missle bunker you will find your self on the roof
being attacked by a helicopter...Hold R1 to auto aim and then use the
roll button (circle) before the light on the helicopter hits you... as
it flys overhead blast the hell out of it, and repeat.
Added by: Phillip-Lee Fran.. , ID#7645