- Crusher: The Crusher is extremely strong and is the biggest Special Infected.
- Sneaker: The Sneaker is the scariest Special Infected, mainly because you don't even know it is there until it attacks.
- Blader: The Blader is the second strongest Special Infected, with camoflauge so you can't see it, and three feet long swords coming out of each arm.
- Taurer: The Taurer is a big, four legged, three horned Special Infected that runs full speed at his enemies, while it's body spit acid.
More Special Infected are around, but have not been logged and/or studied. If you see any new Special Infected, be sure to log them here.
All zombies have an extreme weakness to fire, and getting their heads blown off.