Realistic is glitched for some people if they apparently patched the game. They then cleared the cache, did the last two levels then it popped.
Some of the PEC challenges like smashing a enemy through the window has not unlocked for me as I have done it ten times now.
Cat and Mouse Perform a hand to hand takedown against an enemy who is investigating your last known position.
This is hard as the enemy don't hang around in your last position too long enough to approach from behind and a hand to hand take down!
Originally Posted by mestiso7323
Also, it seems to only give me credit for one at a time. I can take out three guys that were stunned by an EMP device with a grenade and only get credit for the grenade kill. Am I missing something?
As for the Stunned and Frag, I am getting credit for both. Try a Flashbang instead?