| animated_model | Animated model. Typically no physics. |
| breakable_prop_model | A physics model that can be broken into other physics models. |
| generic_actor_model | A generic actor/NPC model. |
| jointed_physics_model | A ragdoll type model. |
| physics_prop_model | A generic physics enabled model. |
| static_prop_model | A static model. It can still have collisions, but they do not have physics. |