The Karemma freighter gives the Dominion a freighter to use, or at least a scenario target. The Tulaka is unable to truly be a threat,
but it is superior to most race's freighters.
As with many of the ships in this last batch, I have taken to making up my own names for the ship classes that have never
received them (and probably will never), as it became wholly impersonal to call a ship "freighter" or "bulk freighter".