What happened?Combat robots do not have a collision mask defined, which makes them immune to all damage that is not a direct homing attack. This includes explosive damage from grenades, explosive rockets, explosive cannon shells, artillery. Projectiles that do not home in also do not collide with combat robots, and thus does not affect it. This affects all shotgun shells and regular cannon shells.
What did you expect to happen instead?Combat robots take damage from all of the damage sources mentioned above.
Reproduction steps1. Spawn combat robots assigned to enemy force (save file provided)
2. Shoot at combat robots using weapons mentioned above