I have HL2, but not through Steam (illegal ) I have HL2DM through Steam. HL2DM has all the entities needed for singleplayer, but when I try to get NPC's to work they just stand still with their arms out. I followed the assault tutorial in :
http://www.hl2world.com/wiki/index.php/Ai_Assaults
But it does not work. Is this a question of me not doing the setup correctly, or is it because Im not mapping under HL2SP? Anyone have any suggestions, or help?