As a new convert to Star Sector, thank you, MShadowy, for an awesome mod. It's one of my definite favs, along with Dassault-Mikoyan. Faction plays very differently, has unique feeling ships and weapons, and is fairly balanced compared to vanilla factions.
Can we get a big round of applause for the Mimir? I just stuff it with vents and a flux dissipator, drop in a tachyon lance and two Uhlan siege lasers, and an integrated targeting unit and go shieldless while my flux blows up to maximum. It's fun trying to manage the insane flux buildup, but you can destroy enemies at range, find a break to vent, then either Nidhoggr lance some fool, overloading him for your fleet, or lock drive forward to catch a frigate or destroyer unawares. I think it's one of my favorite capital ships to fly.
Narwhal Torpedo Launchers are also pretty damn nice. Not quite the knockout punch of a Reaper, but versatile for taking out both small ships and putting the hurt on larger ones.
In my current playthrough I'm Dassault-Mikoyan allied with Shadowyards. I play the Mimir against heavy capital fleets, then switch to Kormoran or Snow Goose for chasing. The Mimir's actually pretty good at catching runners though.