Call of Duty: Advanced Warfare

On Round 13 Oz will teleport you to his room. There will be 4 windows that Oz will spawn behind randomly. You will need to kill zombies while avoiding traps until the window Oz is behind opens up, then you can shoot him. There is a sound that alerts you to when the window opens. If you do enough damage, the console he is at blows up and erupts in fire. Oz will then teleport to a new window and the process repeats until you blow up his 4th window. There are several things to look out for in this area. First there are 4 pillars that you can get on and 2 walkways above the ground. These are great for when Oz electrocutes the floor, and good to stand on to shoot him when windows open. He will occasionally put a laser grid in the air and you need to be careful not to jump into it. He will also put Infection gas around pillars from time to time and you will have to cure yourself in the middle of the map at the cure station. There will be turrets that he calls in that spawn on the ceiling and behind doors on the ground floor. All this while he summons basically every type of zombie in the game. So you will have to be on your toes jumping from pillar to pillar while avoiding traps, killing turrets and zombies, and listening for that Alert sound regarding Oz's window. If you do not do enough damage, the window shuts and you have to wait for that one to open again. So try to blow him up each time or this fight can really drag out. The Blunderbuss is the best weapon for this fight.