Updated version with some tweaks.
Internal bomb bay holds 6 x Inferno missiles, 6 x Boom 25 bombs and 3 x Boom 50 bombs.

AG.1 + VTOL - Control internal bomb bay doors.
AG.2 - Toggles afterburners for supersonic flight.
AG.3 + VTOL - Controls spoilers/airbrakes.
AG.4 - Launches all Inferno missiles.
AG.5 - Carpet bomb Boom 25s.
AG.6 Carpet bomb Boom 50s.

This is a very effective carpet bomber - in the convoy mission the whole convoy is easily taken out in one pass by carpet bombing both Boom 25s and Boom 50s through the Action Group controls (3,000ft with roughly 50% throttle without afterburners and releasing at 0.9m from target usually does the trick).
The Infernos are there for cleaning up remaining trucks or anti-air vehicles if you miss with your bombing run.

Plan on building a cockpit and other features as time comes - i'm pretty proud of this one so i thought i'd release it as i update it.