I would imagine this guy would have the same function as the A-10 Warthog, and therefore would benefit from a gatling cannon for Close Air Support. If it is 'light' then it would have the same armament as a Bell UH-1H with mounted machine guns but without the bombs and small missile pods.
ok, I like this attacker! engine nacelles like the a10, and those wings.... looks like it can get somewhere fast, slow enought to lay a lot of firepower on a target, and glide longer then other attackers.
And, like the Warthog, this isn't an aerial combat unit, it's a ground attack ship. It has to be slow in order to engage ground units effectively. It will lose against even a moderately fast jet fighter. That's why it probably has to be fielded with a fighter escort. It's the price of specialization.