(adsbygoogle = window.adsbygoogle || []).push({});
first the need to make the zombie spawns which take a while then the map then fence it off add the barrle boxs add random box and spawn areas add dogs add traps add extra new stuff and then put back story and easter eggs in and the alot more stuff i misse so it takes a moth to make then another month to test and fix all the erorrs then get ir ready more mass download and increase sever capasety so to make 4 zombie maps would take atleast 4 moths not less than 1 like some people saying ok so no zombie only map pack
A "Zombie-Only" map pack would be easier... Instead of making 4 maps (3 Online + Zombie) they only need to make a zombie map, unless I misunderstood that horrible excuse of a paragraph.
whos to say they havent been working on other maps this whole time...just becuz they only released one at a time doesn't mean they are working on just one at a time...