Urgent update for serious bugs and some new things  
1) New map: the human living room
2. Fixed the big rural areas and small villages, where players could not move around properly.
3. The small cabinet model in the kitchen has been modified. It can't be entered from below now, but it can be entered through the cabinet door.
4. The BUG "enemy bomb cannot be found" in the new Chinese tutorial fixed.
5. Added hand grenades, ball bombs, and other special items to some of the maps.
6. Fall off world camera bug fixed.
7. "Serial killing" has been added.  
9. The problem of accidentally crashing the game while disarming a bomb fixed.
10.The ball bomb now has an initial roll speed.