The best Black Ops Zombies game to buy right now

Black Ops 3 is probably the best Black Ops to buy if you are looking to get zombies. Black Ops 3 has mods, workshop maps. Black Ops 2 has a shit map with the shitty TranZit mode, Black Ops 4 is too expensive for what it is and has no mod and custom map support however it at least comes with more than one map. I have not played Black Ops myself however I would strongly recommendBlack Ops 3.