Originally I meant this ship to have an anti-piracy/shipping regulation with the secondary ability of bolstering the fleet. The RHB carries the boarding party, and they will be armed. Other than that, the main gun and the CIWS should be enough to defend the ship at closer range.
The reason I put missiles on it is that this ship is borderline corvette, so I assumd it would be usefull to have a SAM system on board.
I apreciate the comments, they are really usefull and interesting to look into!