Well I can tell you this with no amount of uncertainty. I would never do something like this. I would also never kill a teammate (Clutch, for example), by running him over because we didn't have room for 3 on the motorcycle.
I totally did not shoot a random third world country squadmate in the face with the revolver because of a glitch not allowing a 4th person to get in the car...
I headshot Trizz last night. He was swimming and I was a few hundred yards away up a cliff. Pretty proud of my shot.
One round last night, I grenaded Alain and Mantis, ran around the building, shot at Hal, then finished Mantis off... I felt like a winner but they were pretty irked.