Call of Duty: One Room Zombies Challenge[Yub]

Find to small. Zombies respawn behind the mystery box. Mystery box wouldn't opened.

The gun box doesn't work so i was stuck on the pistol forever pls fix that

Theres a crack in the wall behind you and the zombies are trying to come from over there and I couldn't kill them.

Really hard to kill zombies at back

You really need to fix the zombie spawns... I got stuck on Round 2 for 5 minutes

Zombies get stuck behind building unable to play.