RTF is a global modification that replaces all towns in the game.

And does the beam reach across the entire arena? I once tried to make cyclops shoot, but it didn't work.

You can get the beam from the Lich; you just need to correctly set the firing point.

Added 2 minutes ago

Perhaps, to make the head centered, you need to either shift the skeleton relative to zero, or use animations? And to close the hole, you can pull out the cyclops, close the hole in 3D, and put it back in...

I don't work with animations and skeletons, and I'm not very good at modeling in general (
I only work with visual effects.

Added 2 minutes ago
In VK, they suggest adding a large head effect that will cover the empty space and immediately eliminate the holes on the back of the head; for now, this is the optimal option.
I didn't consider it because I wanted to preserve the animated face, but in principle, the jaw can be attached separately from the head