You can actually upload you'r player models but make sure they are NPC models or you'r own models not copyed. The model needs to be created with Jed's Half-Life Model Viewer 1.3.6. ( Jed-s-half-life-model-viewer.software.informer.com )
ACCEPTED:
-EDITED MODEL
-COPYED NPC MODEL
-ADDON FOR A MODEL
NOT ACCEPTED:
-COPYING THE MODELS FROM SVEN-COOP
Please message me for the models thanks :)