I'm not sure if anyone reads the mod thread in the official forum anymore so I'm gonna talk about this here, since it seems more active.

I've added a number of clothing pieces that were supposed to block a minimal amount of damage but would still allow bullets to do harm. Instead, they seem to completely absorb the damage while allowing the bullet to pass thru the actor sometimes.

When the clothing piece is hit, a smoke puff is displayed when the bullet both enters and exits the actor, leaving no wounds or indication of damage taken. It kinda makes it look like the unit dodged the bullet or was lucky enough for the bullet to just graze his clothes.

It doesn't happens all the time and I think it's a cool unintended feature so I'm leaving it like that.
Commanders wear 2 pieces that provide this; their hats and their high collar trenchcoats.
The newly introduced Poncho used by Medics and sometimes by other units has this feature too but it happens less often, due to their smaller size.

I'll probably add more small pieces, each covering different body parts. Also, maybe the biggest pieces should be only allowed on normal Soldiers, since they kinda get obsolete.