The TSB-11's are BGreens, the TSB-8's are MGreens (so it's something between SGreen and BGreen).
Am I nuts or was there fiction that the Golgotha was going to be a class of agile, effective, reasonably affordable heavy combatants for killing things bigger than them? I thought there were either lots of them or plans for lots of them.
That's the idea, yes. Don't let the length in that tech description fool you, though. I'm sure it will be shortened a bit in its final iteration. It will still be longer than an Orion or Hecate, but keep in mind that the Golgotha not only has a very slim silhuette, but also has a lot of open space in its "bounding box", effectively making its volume comparable to that of an Hecate.
In any case, the Golgotha assembles a lot of firepower inside a small frame. It's a real war machine, but that comes at the expense of other attributes: it has a small fighter complement, it's meson system is prone to glitches and failure, etc
EDIT: a presentation of the Golgotha is still a long way off. I'm modelling it quite slowly, in part because there are other assets that require more attention (and my time is limited), but also because being the poster boy of the campaign, the Golgotha needs that nurture that only comes with time and proper "inspiration"
Some of the posts we're going to make are going to be WiP stuff, though, so you might see something about it before it is finished.