you get perma jug by going into solo tranzit, buying quick revive, and going down twice. May take a few games. Do it right away on round one. I think you have to be online at the time you start the game to use/get it. Who's who means that when you die, you respawn on a grayscale acid trip that you can use to go revive yourself or other people. It's confusing, but go on solo, get it and cook a nade and die with a crawler and see what happens.
EDIT: EVERYONE MAKE THEIR CLAN TAG [AngW]
please tell me and zero what happens