I'm assuming that when you hit a zombie and then see its skeleton (X-ray vision) it means it's stunned, but how do I then execute it?
There's no "hint" on the screen or anything to tell me what key to hit. There's nothing in the key binding settings about execution. I tried E (kick) and LMB (attack), but they do not work.
I'm playing on PC.
ALT + Arrow
if I'm not mistaken).E
", which somehow implies that you can execute them after the stun (otherwise I don't really see how they are more easily killed while stunned as the perk suggests).