go to Gtav/mods/update/x64/dlcpacks

and drop there the folders - 

thebatmob
batbike

then go to gtav/mods/update/update.rpf/common/data

find dlc.list and drop it anywhere on your pc.

open it with notpad go all the way down and add that line- 


<Item>dlcpacks:\thebatmob\</Item>
<Item>dlcpacks:\batbike\</Item>

and your done! go in game use menyoo and spawn it by its name-thebatmob-batbike.

