This is my specialty !
The beluga is great for combat, it has 4k armor without engineers, and is incredibly agile.
The 2 hardpoints on top are a little awkward but its not TOO bad.
It is hardly affected by weight at all, so even with military armor and interior slots full of reinforced concrete, you still get 20ly unengineered.
I would HIGHLY reccomend it for combat, and anything else you want to do !