So there's been a surge of Bionicle mods in the L4D2 workshop lately, thought I'd share them with you guys.
Demonic Labrys and HeeHoJackfrost are pretty much the people responsible for the most of them, they've made the Common Infected into the Bohrok, and some of the Special infected and survivors into the Rahkshi.
I really recommend checking them out if you play L4D2, it's an interesting experience, to say the least.
Also, @Gyro, they have Dio, Josuke, and Jotaro as the L4D1 survivors. Now all they need is a dolphin for Zoey.