I recommend actor limit fix mod
zombie dogs by mihail for the textures. in version 2.5

Same as the original Creepy zombies but now they hit harder and are everywhere also special ai where they migrate.
Evil dead revive...
Add new creatures Zombie on skyrim.
They are placed in cemeteries, wetlands, forests.
High level players may encounter evil wizards who summon zombies.
If you defeat them, you will be able to obtain a new spellbook.

● Details
　Zombies are added to the leveld list and appear in forest areas and marshes.
　In addition, it will appear in some dungeons and land.

　Zombies added place 
　　1. Abandoned Prizon 
　　2. Shriekwind Bastion 
　　3. Northwind Mine 
　　4. South Skybound Watch 
　　5. Forsaken Cave 
　　6. Fellglow Keep  
　　7. Ratway 
　　8. Ysgramor's Tomb 
　　9. Brittleshin Pass  
　　10.Bleakcoast Cave 
　　11.Hob's Fall Cave 
　　12.Wetland of Hjaalmarch

　　●OPTION
　　You can choose several versions to suit your taste.
　　· Zombie does not use weapons version
　　· There are versions that do not place zombies in Morthal wetlands and dungeons.

・ Other notes
　Twinsoul perk has been modified to raise the summon upper limit from 2 to 20.
　Lich has Twin soul Perk. 
　If you use MOD to modify Twin soul Perk Lich will also be affected.
   *Increasing the summoning limit increases the number of zombies that Lich can summon