Lo-Fi Games

I've been looking through the FCS trying to figure out how unarmed combat works as well as weapons in general.
Is there a value that determines what limbs are needed to use a weapon. For instance, I know some weapons can be used if the left arm is crippled but not the right.
I'm trying to find a way to change this value to make no armed MA happen or lefty combat

Any advice would be great!

From the testing some of us have done, limb requirements are mostly hardcoded.

No matter what you change it seems impossible to have weapon combat without a right arm. If you have a left arm the character will opt for MA, and no arms will refuse to fight.

And as mentioned before, MA can be used with only the left hand, but with no arms the character will outright refuse to engage in combat (even to dodge attacks).

There are options in the FCS on the combat techniques themselves for governing left vs right handedness, or two handedness, but none of them do anything once applied. It all is treated as vanilla as far as we can tell, which points to something deeper than where we can access being what is actually governing it.