Just realised the image I put in occasionally breaks, rip. I think the host I used was dying a little.
I'm updating the main post with a new one, and I'm putting it here in case anyone wants to see it quickly.
Pretty good responses by the way, guys! Except for those of you who gave up. Anything's worth a try in this situation, c'mon.
Wibble's answer is the one I'm closest to. I would headbutt the dude in front of me in the dick, hope the other two shoot each other, and try to take out anyone who happens to be left with the gun of the dude I headbutted.
gg surfings, playing it smart