Before I start: I have all the mod tools and some other programs to work with ff and gsc files

I've been trying to add pack a punch, bo1 perks, and more weapons (WaW weapons that are already in the game, but not the map) to Verruckt.

How do I start this project? Are there any tutorials to help with this kind of modding because all I can find is mapping and nobody has made a tutorial on how to add perks to a stock map --but it is possible because I have seen a Natch remastered and Der Riese 2.0 with more.

Also, what tools and other resources could be helpful?

Hello there!

So from what I understand you are trying to take the stock Verruckt and add new things to it correct? If I am indeed right, I don't believe there is any way to do that.

I could be wrong (someone please correct me if so) but I believe that you would have to recreate the map yourself in Radiant and add those features you wish to add. If you need any assistance or help I am more than happy to be of service.

Make a folder in your mods/ folder called "my_asylum_mod".
Extract text from zone/english/nazi_zombie_asylum.ff into a temp folder
Extract text from zone/english/nazi_zombie_asylum_patch.ff into the same temp folder
Copy and paste the extracted /maps folder into your "my_asylum_mod" folder.
Make an empty mod.csv in your "my_asylum_mod" folder
Open launcher and in the mod builder mod.csv section
weapon,sp/nambu
Then in your nazi_zombie_asylum.gsc add the nambu weapon to "include_weapons()".

Check files, build mod, load the game, load your mod, then in console "map nazi_zombie_asylum" to load into the modded stock stock.

Make a folder in your mods/ folder called "my_asylum_mod".
Extract text from zone/english/nazi_zombie_asylum.ff into a temp folder
Extract text from zone/english/nazi_zombie_asylum_patch.ff into the same temp folder
Copy and paste the extracted /maps folder into your "my_asylum_mod" folder.
Make an empty mod.csv in your "my_asylum_mod" folder
Open launcher and in the mod builder mod.csv section
weapon,sp/nambu
Then in your nazi_zombie_asylum.gsc add the nambu weapon to "include_weapons()".

Check files, build mod, load the game, load your mod, then in console "map nazi_zombie_asylum" to load into the modded stock stock.

I did all those steps but didn't try the adding a weapon because I didn't quite undestand. Instead I tried replacing the Player 0 model with a different marine player model from campaign in the characters folder in my mod and when I compiled it said Everything Is Ok but when the map loaded it crashed back to the menu.

Also how do I get an empty mod.csv? I copied the one from /zone but I don't know if that works

Any csv will work as long as its empty ( no text inside ).
Once its renamed and in your mods/modname folder, open Launcher and in the "mod builder" tab select your modname from the dropdown menu and there is a mod.csv section that you can type text into.