Idea 1:
Give munificents the sensor ping ability
Reason: because before the war they were used as for debt collection, AND as a communications frigate, I figure that they would have pretty good sensors because of the latter role.
Pros: gives new tactical possibilities to a otherwise easy to kill ship.
Cons: may not matter anyway if the fog of war is removed after 10 seconds for no reason.
Idea 2:
A powerful (maybe axial) ion cannon.
Reason: Because I find mentions of it in many places and it seems like the major ship to ship weapon employed by the munificent. It's also the only visible weapon emplacement in any of the reference images I use.
Pros: ion cannons are cool
Cons: might mess with pathFinding? Maybe?