-25% at chance crit mod of helmets. So on helmet CA it goes from -10 chance of crit to -7.5. Yep that's worthless. But we have good hope that it will be improved.
The crits I see are doing a large amount of damage and often doing greater damage compared to big guns even when they are not bypassing and mind you this is wearing 100/100 ca helmets outside hinkley and 100/100 ba helmets in hinkley with bonehead trait. Another idea is to rework what the perk does.
the avenger has already been nerfed to bits as it is.
If you want to make enemies, try to change something.