1. Zombies die of two stabs (knife), but not of a shot in the head (you have to headshot them twice or four shots in the chest)
2. Sometimes the clothes disappear when you change it directly to the clothes on the floor (so you lose everything you had on the dissapeared clothe)
3. Some objects appear where they should not (for example: if you're close to an Hospital, you will find medical objects in all the surrounding buildings and cars)
4. Some weapons continue jamming all the time even if they are in good condition
5. Headshot with pistols still not killing
6. Moonlight still not working

Etc etc etc... older versions was way better than this.