The original Left 4 Dead Infected - Witch, Boomer, Hunter, Tank and Smoker.

These models have been recompiled using StudioMdl for SFM and work well in the environment. They have their original flexes and animation sequences. Jiggle bones are on the models and if you find that they are not acting properly, should be able to be baked so you can animate them manually.

The only model that is not Rig_BiPed_Simple compatible is the Tank. This is because his bone structure doesn't meet the requirements of the script.

Note on Sequences included: Some sequences may cause SFM to crash or may seem jerky, but they should give you enough to be able to fine tune them if they don't cause a crash. they haven't been recompiled using the SFM compiler yet. I will be doing that soon. Just remember to save your work before importing a sequence.