Max prestige / Unlock all multiplayer

Just made the move from xboxone to PC, just want to be max level on mulitplayer, does such a thing exist? not zombie mode.

add me on steam my profile id is /id/HollowedTv or friend code " 313213809 "

anyone can do this for free to unlock all guns? had someone try helping earlier but it didnt unlock guns for me just achievements and crap... plz help need more snipers