You can't use it in any modpacks you want !
NOTE : This mod remove the possibilty of making iron armor, diamond armor and diamond tools or weapons ! It also remove all the vanilla hostiles mobs (exept for zombie) and the possibility of crafting wool, so you can't make bed with this mod. There's also no enchantement possible, the enchanting table can't be crafted. Its a realistic mod, the mod makes like the apocalypse happen in real life, so thing that are "Minecraft" aren't possible here...
You want to play a zombie apocalypse in Minecarft ?
Well this mod do it by adding new zombies : suit, scuba, millitary, policeman, farmer, chef, prisonner and much more...
But there's not only zombies, there is also mutant like the Arminia, the Taller, the Bidoo or even the Abominable...
New weapons like the Baseball bat, Machete, dynamite, M9, Ak-47 and much more...
If you build a base and want to defend it against zombies you can build traps, like the barbed wire, spikes, leaf trap or saw trap.
There also furnitures to decorate your base : chair, table or even toilet to make your base comfortable to live in, even if zombie are noisy neighbors...
Some structures from the civilisation we knew before will generate : abandonned shcool, house, fastfood or recently made builds like the millitary tower or lost cars in the wild. But more the structure is large and infested with zombie, than more stuff there will be in !
!Warning! : Before playing with this mod in one of your save, please make a backup of the map ! I recommend you to create a new world when using this mod for the first time.
If you encounter any bug issue when playing with my mod, please told me in the comment of this project. Feedback is welcome :) !