Well, i suggest that you exit hht, start it up again, and to do that shottie plasma nade thing, do the following:
Open your map in HHT
Go to the [weap] weapons/shotgun/shotgun tag
Make sure you're in the dependancy swapper. And beside "proj projectiles/shotgun/pellet" , change it to " projectiles/plasma grenade/plasma grenade".
The dependencies work fine, but even after closing down and starting up HHT it still gives me that error.
as for the shotgun thing, thanks untalkativebunny, that helped alot, but when i shoot the shotgun, the plasma grenades just drop right to the ground rather than going forward.