Infinity Ward didn't add the Nuke, but they did add the M.O.A.B. The M.O.A.B stands for Mother Of All Bombs. You cannot set this killstreak as it is automatically there, the only way to get this is to get on a 25 killstreak without dying or 24 killstreak without dying while using Hardline. The M.O.A.B does not end the game like the Nuke, instead, it does the slow mo effect and kills everyone on the enemy team and then has a sand storm aftermath. It does not kill you, take down your killstreaks in the air or end the game.