gta5 story mode zombie apocalypse

i have watched a few youtube videos of folks playing gta5 zombie mode in story mode.how and where do you get the mods for itbobo

Google gta zombie mod not hard to work that out don't ask for links or name of site its not allowed

thanks man! this is much more interesting than the story :D

Yeah ive seen a few too, since we cant post outside links, just google some zombie mods, a few come up. Normally have to dl a mod launcher for it