Close Call – Metal Gear Solid: Twin Snakes Highlight

I am about to head to the armory to get the sniper rifle so i can fight off sniper wolf. knowing i can use the box to trick the enemy to transport me I head to the truck. There were guy circling the area and i saw one coming so I try to hide in a tight spot. Somehow i mess up and not press up far enough he catchs me and the gas is turned on. I evade the enemy and get on the truck but they are looking for me. The gas is still pouring out and i have little health left. Right at the All clear I only had 1hp left! Talk about a close call! Ends out I never had the box that allows me quick passage to the armory so I had to take the long way.