When both legs are damaged, NPC sits on the ground and cannot move, but can shoot. How to fix this.

[orangedeal]

This can cause serious trouble because he can be in the bushes and see everything perfectly well. But I don't see him. So I wanted the NPC to be able to move, but very slowly, like the player would do when both his legs are damaged.

What needs to be changed in the screenshots below? I want to leave the ability to damage all limbs.