It would help if there was a functional version of the mod. And knowing what your issue was.
My apologies, I extracted the actor from the mod as a whole. I forgot that breaks everything.The mod in full.
The main problems are that the crab actor sinks into the ground when stationary and tends to trip when moving. It's minimally edited from the Dreadnought so far, but what I have done is:
- Replace the turret and leg sprites
- Slow the walking speed
- Reduce the main body mass
- Fiddled with atoms?
I've done searches here of course and I can't really find much info on it, other than one person suggesting a Lua script is necessary.