Step 1: First 30 rounds - The first 30 rounds are quite boring so you will sadly have to get used to that, but the first 30 rounds are where you prepare for later! You should stay in the first room until round 8 or 9! (Use the MP5K if needed), this is how you will grind your first points. Then at 10 get all your perks and the ray gun (YOU ARE GOING TO NEED THE RAY GUN A LOT)! Then stay at the box strat until 30. You can do this by hiding behind the box and shooting the killers when they are all in a pack! Use the fire sales that they drop to get monkey bombs early.

Step 2: 30+ Rounds - There are multiple ways you can get your 100 rounds.

Strat 1: Mystery Box - If you'd like you can use the mystery box until 100. Note, you will have to wrap around jeff room for ammo!

Strat 2: Checkpoint - By far the most popular strat, Checkpoint. it is a vented room located near Juggernog spawn but do not go down there, stay in the glass room with the vent behind the plant! This is usable for any round, including 100+!

Strat 3: Right hallway camp - At the end of the main hallway, there are two big doors, choose the right one and stay at the end of that corridor, the killers will all come out at one barrier, this is a quick and easy way of getting 100 rounds!

Strat 4: RG 2.0 - There is an awesome glitch you can do which makes you immune to radioactive damage! Just go to where the RayGun is located and leave the game in that spot. Then rejoin back and boom, no damage from the radioactive. Note: You will have to do the whole process again if you leave the area!

Strat 5: Firetrap - In the medic room there is a firetrap, so sometimes you can use it to fire the killers! Sometimes this strategy is quite helpful!

Strat 6: Pap machine - If you stay behind the pap machine the killers will stay just in front of it and if you switch shift lock on you can kill the killers even without going to them!

Now you are ready to easily get 100 rounds. Just make sure you get JUGGERNOG, DOUBLE TAP AND QUICK REVIVE, no other perks are required!