It was meant to be a mission like every other. You go there, kill the enemy, go back, job done. But no.

You were flying in a helicopter, sitting next to Zach, when you suddenly heard, and felt, a loud bang in the back. You look over, and before you can even react, you fly out a hole in the back, the others just heard a quieting "oh fuuuuu..." and then just a loud thud.