Hey Guys i have some Questions . 

First Question: How i can change the perk icons??
Second Question: How i can add a zombie timer??
Third Question: Can i download somewhere the complete Mob of the Dead Zombie skin?? Because i make by every try somewhere a mistake in my skript and then i have the default characters?
Fourth Question: Can i download somewhere the bo1 and maybe the bo2 perks an weapons??

Hopefully you can help me
Thanks in advance
vDox

Look around UGX, theres tuts on doing some of the things you put there

1 - You need to have the icons (dunno where you can get the original ones, as they may not be shared here) and have to place them in your root/mods/mapname/images folder (with the same name as the default ones, just look around here or on ZM, there are at least custom ones where you can get the names from).
2 - Do you mean a timer or a counter?
3 - I think there's a pack for motd zombies, but none for the characters. But there's some good tutorials on that (which sadly are a bit time-consuming).
4 - It's hard to find finnised weapons, especially from bo2 and especially WORKING ones. You can try to teach yourself how to do that too (which will also cost lots of time).

If you have more questions (mainly depending on my answers) or if you don't know how to ask for certain things in English please PM me and I can try to give you a solution or at least a translation.

Second Question i mean a Zombie Counter

Second Question i mean a Zombie Counter

zombie modding has tutorial for that, its super easy to add