Since doing what Andy suggested doesn't work, the only options are
totry it in sohl, but then it wouldn't really be playable by anyone else unless of course I encorporate sohl into an entire mod of my own...
The other option is to make the entire thing into an animation, and having the grunts take damage from something random like grenades...
But then the turret wouldn't actually shoot them, would it..?
Another option might be to switch the barney and grunt models,
so it looks like the turret kills grunts... But that would be a lot of hassle and would kill the gameplay... and the barneygrunts would only have those sissy pistols...
So I think the only real option here is to install sohl and see if I can get it to work then, and adding a copy of sohl to my map for others...
After all, sohl is backward compatible, if I recall correctly.
Thanks for the replies, guys!