Im guessing that in FS2 the Boanerges is the (intended) replacement for the Ursa, right?
If i recall correctly, the tech room desc. gives the impression that the Boanerges is easy to repair and maintain...therefore cost-effective, which im guessing the Ursa isn't.
not sure about armor and shielding...i believe the Ursa can take more damage?
also, i believe the ursa was slower, but handles better in game? (cant really check ATM, as my computer's connection to the residence hall network is f***ed and i am in the computer lab downstairs.)
They have the same amount of payload, yes?
So im guessing that the GTVA doctrine is that we phase out the Ursas for faster, more cost-effective heavy bombers, and have our new generation of fighters (Perseus + Erinyes) do point and heavy escort, so that we dont have to make them maneuvrable.
Sort of like what happened to the Aeolus class...good but expensive, and better to stick the Deimos class of 'vettes instead.
this seems like a stupid idea ingame considering the underwhelming intelligence of the wingmen, but in a RL situation, where our pilots are academy graduates and skilled in escort....idk
thats just my idea...
personally id take the ursa, due to its 5 gunpoints, 2 gun systems, and turret, vs the boanerges and its 2 gunpoints.....as a GTVA commander, id get some good pilots to escort my cheap Boanerges.

all a matter of perspective.