Eco Hotel roof top is impossible

How do you defeat Medrano on the helipad? I have shot and shot at him and nothing seems to work and I fail the mission every time.

Is there something else I have to shoot to stop him?

Can one of you email me a hint or something? my email is adam_f86@yahoo.com

ummm....that answer is for the PS3 version. I need to know how to defeat him for the PS2 version.

[b]hi im new
but i baught 007 james bond quantum of solace a week ago.Forget tahat now lests give some hints hint1:level 1
i made it 007 if make it hard like me the level is difrent .I is easy just shoot the personh thats geting on it.the last level ::
run onto the balcony take cover behind the wall.quickly kill the guy right in front of you before he jumps over and kill the 2 guys behind cover.jump over the walls and make your way to the end.when prompted to do so SHOOT the gas tanks to stun MEDRANO and watch the quick cutscene of camille killing him.head over to CAMILLE and pick up the ammo if yiou need it.
now you have to go after GREENE so turn round and run thru the doorway.walk accross the beam and turn left.run down the slope and turn left.take cover behind the wall on your
right and equip your 8-cat. take out the guys who come from the right first.once their dead take out the guys on the
top floor left hand side then take out the rest of the
guys who join the fray.keep switching cover from the
right hand wall to the left to stop grenade attacks.when you thinl your getting near the end of the battle about 5 more guys will come out on the top floor so use the same tactics to kill them.once they are all dead head towards the door at the other end of the room and go to unlock it
you will get blown backwards all the way to the other side
of the room and GREENE will pop uop on the top floor.
GREENE throws alot of grenades and you have a time limit.
as soon as you have control take cover on the right hand side to avoid the blast.quickly soot the gas tanks on the right hand side and run to cover on the left hand side
as soon as the cover on the gas tanks on the left hand side falls off shoot the tanks.there will probably be a
grenade next to you as you shoot the tanks,dont worry you wont die.once you have shot both tanks you qill have killed GREENE.you have 30 seconds to escape the building before it blows up so do a pretty sharpe u-turn and you will see CAMILLE waving her arms at you.run towards her and jump over the rubble in front of you.run out the window to your left and jump out into the desert
ok bye for now:cool:

hi,there are many gas tanks within this game tell us which level then we can help you!!