I always thought divisions like that in the military of our future space game should be something like... A ton of fighters/bombers, some gunboats, 1 or 2 cruisers and a battleship/dreadnought. But that's just me I guess?
EDIT: But if you can make the rest of MNS behave a bit better, it's still a good thing. It's always "lovely" to have a raid... 5 fighters vs 5 dreadnoughts.