Killing Natalya
I don't know about anyone else, but that is my favorite thing about this game. Even during the cutscenes, you can kill her and mission complete.
shareI do the same with Valentin. As soon as he's done talking and the screen reads "Objective A: completed", I nail him in the back of the head. He's fat and blocky, which amuses me when he falls.
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Hey, lady! C'mon, hit the gas. You're killin' me out here!