Originally Posted by HE4VENSENT
hey again, GGN you might wanna add this to the main post, but if you do the Close Combat Mode and Headshot mode glitches, and then try and do the other achievements like kill arana as wesley without the mask or kill the immortal as cross, they may not unlock. this is because you need to re-glitch it back to normal. so start a new game on normal mode, then quit out, then you can attempt those achievements again.
I think you just made my night, the achievement for killing the Russian wasn't working for me and I bet this is why. Thanks!