Before anything, you must first reach rank 2 and purchase the Mark of Khorne with points from the skill tree menu, without it you're just a fake noob that runs for those weakling sorcerers for heals, a true Khorne Berzerker NEVER asks for ANY kind of help or healing!

After you purchase the holy mark of Khorne, you MUST ONLY use the Assault class and equip the Mark of Khorne, NO RAPTORS, you're a fake weakling if you need a jetpack to fight, don't even dare thinking about escape or any kind of retreat!

The next step is arming your Assault class, the only weapon you're allowed to use is the Chain Axe, NO FORCE AXE! you may use the chainsword until you have enough to purchase the axe, the sooner you get the axe the better!

Final part that is needed to complete your true Khorne Berzerker is the Twin helmet! both allies and foes MUST be able to recognize you as a Khorne Berzerker the moment they spot your helmet and your axe in hand! there must be NO MISTAKE that you're a true Khorne Berzerker, and for that you will have to spend 4,000 real money points, it's only about 5$, don't be a cheap casual, you must own that helmet, it is part of your identity as true Khorne Berzerker!

Once you have all those things, you must rename the Assault class to Khorne Berzerker and equip it, after that, you must use only that regardless of the battle situation! your team needs more Raptors or Havoc squads? TOUGH LUCK BECAUSE YOU AIN'T CHANGING! Let the other fools on your team change all they want, all YOU need is your AXE, a true Khorne Berzerker will help win any battle by brutally attacking the enemy front with a nonstopping assault! you shouldn't care if you're alone or not, if you're outnumbered or not, the only thing that should matter is how many times you can strike your axe into the enemies bodies before you're dead! remember! you HEAL as you FIGHT, the MORE YOU FIGHT, THE LONGER YOU STAY ALIVE!

ALSO! DO NOT FORGET TO SPAM T ALL THE TIME! Both enemies and allies MUST ALWAYS hear your screams for BLOOD!

Now that you know how to become a Khorne Berzerker and how to fight as one, lets go over the steps one more time quickly!

You will need:
Mark of Khorne at rank 2
Chain Axe
Twin Helmet for 4,000 points (about 5$)

Equip those on the Assault melee class and rename it to Khorne Berzerker, join any kind of battle and run to the front lines while spamming T and swinging your axe as wildly as possible at anything that moves.

Now go and make an ocean from blood!

P.S

This video will help you understand the mindset of a Khorne Berzerker