I like MB as it is. Aside from a better grahic, I'd say its perfect.
As far as the Marza being the best ship the TEC have, not necessarily.
Akkan: Can stop MB in its tracks and works well with LRM's.
Dunov: Great support ship. Can repair shields, destroy shields, or use magnetize which is a cool ability. Top all that with flux field, and you just got a great synergy for the Kol.
Kol: The hardest ship in the game to kill. It neutralizes phase missiles, has a damage redux, insane health, and good shields. Then you get Flak burst which shreds enemy SC, you have four weapon banks, GRG which synergizes with flux field to create an attack that can destroy enemy capitals very quickly.
Marza:
Radiation Bomb: Good for tight fleet formations. The radiation affects all nearby enemy ships, so make sure to keep that in mind.
Raze Planet: Great bombing ability. Only second to The Egg's vacuum cleaner.
Incendiary Rounds: Decent DoT. It doesn't do much since the Marza's weapons like to focus their fire. Really, it just increases your DPS by x amount. Its a nice boost, but not what you want to put your points in.
Missile Barrage: The most devastating multi-target attack. (CB is the best vs a single target/few targets.) It can be stopped by a lot of things though. Obviously, Ion Bolt, Phase out Hull, the advent's equivalent that I can't think of the name of, Detonate Antimatter, and some others. The point is, unchecked, this destroys fleets, but all you have to do to survive is use shield restore (if Advent) or just move. That's it. If Vas, you can get out of there really quickly. The AoE is relatively small, so you will only get so many targets against someone who knows what they are doing.
That's the thing. You can just leave, you can just suck up the damage with SR, or stun the Marza. Its not terribly hard to stop. Besides, a level 6 Marza is going to die before any other level 6 ship that a TEC player could possibly put on the field.