Oh, didn't know that
I tried once, a while ago, but Mendez was a tough guy, so I ran away and reloaded (at time, not sure he's still, now with level scaling^^).
Yeah. I played the whole thing through once. Even though I liked the ending I got,
filling him with doubt and ruining the BD... Teehee
So yeah, I walked up and shot the guy.... and Vasquez curb stomped the ever lovin' crap out of me. He is tough. Sooooo I tried again, let Joshua come out, he starts talking... and then Vasquez turns his head cause the crop is flapping their jaw, and THAT is when V executes Joshua and bolts from the scene.