What Are Your Fleet Designs?

[NPC]

My apologies ahead of time if I missed this in the FAQ and strategy guides.

I was wondering . . . what are some good fleet designs?

I'm noticing that one of my (many) weaknesses in SEIV is that I don't make effective use of fleets, particularly in the middle-game.

For example, maybe I'll have a fleet of four or five ships and not have enough supply ships. Or maybe I won't have at least one ship with a medical bay in it.

Should I create single purpose ships and fleet them together? Or should ships have a more balanced design?

Do you create single purpose fleets and then have them work together with other single purpose fleets?

So share your coolest, most effective fleet designs!