So yes, i'm friend with one of the founder of this glitch, at firs he didn't really wanted to tell me but then he sent me a righting version of the glitch. How to do it and everything. So yes know i know how to do it, but i didn't try it for my own. So I need people to give it a try with me. Please read the next step and remember those 'cause i dont want to explain everything once we try it.

Step 1 : Start the game, and have a friend set their party privacy to two and then have them invite you (MY STEP) You are the guy who is waiting in the party of two.
Step 2 : It'll put you back into your own custom game pre game lobby and you need to quickly grab your second controller and hover over "choose map" (MY STEP)
Step 3 : Then it will say "lobby not joinable" Press ok with your second controller and you'll have two menus (MY STEP)
Step 4 : Use the controller that controls the main menu to find a game and whilst finding a game LAGGGG the **** out of your connection (MY STEP)
Step 5 : You will know it worked once you have a pre game lobby to yourself by yourself and the timer has run out then you do the part where your friends join/join (MY STEP)
Step 6 : Then you need to have somebody join your friends session at the exact same time that your friend is joining your session, it will put them in a party but keep you in your own (YOUR STEP)
Step 7 : Then you invite the fourth person to your game and they will be on your team and the game will start (MY STEP)
Step 8 : Once the game has started you simply invite the last two people who are waiting to join the lobby (MY STEP)
Step 9 : ENJOY AND MAKE THE XP RAIN!!!!


FOR AN inv juste message : ANML GrandPa, Saying i know the step.