Well glad to see you can move and shoot at the same time now...one of my biggest pet peeves from the mod.
Also the wonky zombies shaking all over the place made it very difficult to line up a shot on them (coming from someone who has played 1000's of hours of first person shooters).
My only other pet peeve from Day Z mod (which made me rage quit) was the terrible registration of bullets on people... I was stalking a group of armed players (3 of them) into a back yard, I turned the corner and was about 15 feet from one of the guys, none of them were looking at me, I lined up my shotgun at his neck and shot, didn't die. Lined up another shot around his neck area (to catch both head and chest), nothing, as he turned to return fire I shot one last time and nothing happened, he then proceeded to open up on me with his buddies and I died. It was annoying as shit.