While I don't follow the current eSports Call of Modern War Battle shooter game, I believe they may be making fun of certain team players of said game who called themselves "Lethal Company"... but now this name is more commonly associated with a different online multiplayer indie game that is more popular.
Although I could be wrong. I am not an AI
Yes, your escrow can go up that much if your property tax, school tax, or in some cases insurance had a sudden jump in value or changes in what can be claimed. It varies by area and loan, but isn't unheard of.