I am stuck in the plane mission where we have to open the hatch and keep the gas out. As the monster comes down through the roof of the plane's tail the mission starts. I quickly move towards the right side and press X on the hatch and then keep on pressing Square but as the bar reaches till the middle Leon dies because of the gas. On the next try i tried to shoot the monster in its feet and then quickly went towards the hatch but still in vain. I keep on dying due to that blue gas within 20 secs. Tried this mission again and again but failing. Cant get past it. Stuck in it. Can anyone help me out please? I shall be very thankful!