The OC GB has a visable pilot, which implies its a single man ship.
The LR GB has a 'bridge' as if it was a larger vessel with a crew
The LR GB is around the same size, prehaps a tad smaller, however.
the scales are what need to be reworked, that or re-do the textures, or totaly remake the ships.
Personaly I think that the next large rebuild done of the mod needs to re-scale everything, at least the differnce between caps and fighters.
below is one example of a propper scale, tho cruiser/Lib DN scale is a tad off. Note how the uphplder is a mear flea in comparison, its a tad bigger ingame of course.
Now, its not that bad in general, however scale is an issue.