I do the opposite. When I'm in a war, I think paintball. I wait for the 10second call, then sprint like hell for the nearest snake. I always remember to cover my face, because there is more chance of a bullet bouncing off my hand.
I remember one time I got shot in the leg, and I tried to wipe it, but my leg had gone. So I played on, as there weren't any refs, and all the "ragheads" were goin mad, sayin I was a cheat, but it's just coz they're jealous cause I was a better player and my team dicked on them.
And when I'm playing paintball I try to think that I'm in a war, I fire in three second bursts, and have my team piss on my gun barrel to cool it. If we're losing, I have one of my guys call in for air support. I always check my pots between games in case any camel spiders have climbed in. Sometimes, me and my friends play the biscuit game in the staging tent.