A few others I can think off additional zombies.
Bikers types:
Female biker: departed woman wearing black cloths with a leather tint. And has a biker logo on the back. Has more hp and 10 armor
Fat biker: fat Hawaiian, wears a black jacket with leather tint, has biker logo on back. Has more hp and 10 armor
Biker thug: skin for thug zombie, black jacket with leather texture. Has biker logo! Has more hp and 10 armor
Millitary variants:
Fallen grunt: janitor skin, zombie wearing army fatigues. Has a few extra parts on them. Does more damage
SWAT zombie skin: for the solder is tinted black and has SWAT written on them. Has 50 armor but is slower
Fallen Grenadier: looks like the standard solder zombie but has a belt of Grenades on his chest and back. When you hit his chest he will explode like a frag rocket. Doesn't damage blocks
Fallen Flamer: a solder with a black vest, different camo pattern. Has gas tanks on back. If you hit it it will catch fire. And blow up like a molotov.
Bloated solder: a cop zombie variant. He wears a helmet, a vest that's ready to rip Open, and wears army cloths. Has 30 armor and does more melee damage and acts like a cop zombie!
Hazmat variants:
Contaminated hazmat: a hazmat dude covered in Radioactive garbage and blood, deals Radation damage and can somewhat heal zombies near it.
Armored hazmat: a hazmat solder wearing extra armor
Worker varieties
Fallen Electrician: looks like a construction worker but has mo power logos on him. He does more damage and is immune to electrical damage. Has 10 armor
Blue collar worker: a biker zombie variant. But wears a construction vest, hardhat and still big and buff. Has 20 armor and bonus block damage
Fallen worker: a lumberjack wearing a jumpsuit with overalls. Does bonus block damage.