Inactive entities/particles/objects still showing & sound problem

[DeAngelo]

1: Check your map cache files
2: I dunno, I haven't worked much with sounds
3: No, static physics just makes it so they can't move around in the level. Disabling player interaction is what you want.

void SetEntityInteractionDisabled(string& asName, bool abDisabled);

Disallows interaction with an entity.