A quick suggestion:
The Matter Absorber (Thar’Ga special module) is supposed to absorb matter, right? So it should be only logical for it to only work on guns, that shoot matter.
I suggest, that the matter absorber only works for absorbing kinetic damage.
The module would be similar to the Archelon’s Radiation Converter and it would make sense, since the bullets of kinetic weapons are made out of matter.
(Yes, yes, I know. Plasma is technically matter, too. But it is easier to comprehend the module like that.)
Comment, if you like or dislike this idea! ”)