Nazi Zombies, a popular sub-game of Treyarch’s Call of Duty: World at War, is easy to begin and nearly impossible to master. If you have never played before and are wondering how it works, or if you play often and would like a competitive edge, check below for some Nazi Zombie tips.

1. Stick together
This is absolutely vital if you plan on surviving past the first few rounds. Regardless of the map, teamwork is essential in Nazi Zombies. If you do have to leave the pack so to speak, be sure to tell people why and where you are going, so they can save you if necessary.

2. Maximize points
Regardless of your skill level, the first few levels (usually the first 3-5 levels, depending on the map) are very easy. So, you should focus on getting the maximum amount of points. To do this, I recommend shooting the zombies 4 times, then knifing them as they come through the window. Obviously the zombies get stronger as the levels progress, so you’ll have to start shooting them 5, 6, 7+ times before they die.

3. Let them in!
Letting zombies in through windows can be helpful in two ways. One, it gives you more points as it allows you to re-build the barriers, and two, it gives you a better chance of getting a powerup (insta-kill, double points, etc.)  Be careful with this, and only let zombies in when you can handle them (ie. the first few rounds of the game and/or at the end of rounds when there are few zombies left.

4. Use a mic!
If you do not have a mic or choose not to use it when playing Nazi Zombies, you will have a tough time. As with any game that involves teamwork, Nazi Zombies requires constant communication between players. So, plug in that mic, or go buy one if you don’t have one already.

5. Make crawlers
Towards the end of each round, try your best to make a crawler out of one remaining zombie by nading it. If you are lucky enough to successfully create  a crawler, you can wonder around the map, collecting guns, ammo, perks, upgrades (in the new map), etc. without having to worry. Yes, the crawler will follow you, but it will be slow slow it won’t cause a problem. When you’re ready to move on simply kill the crawler and let the next round begin!

Those are all the Nazi Zombie tips I have for you today. Other than these, remember to follow a strategy that has worked for you in the past – if it worked once, chances are it will work again!