As the primary colonial ship of the 3 types this ship supports the most civilian life, With 2 extra modules to support general life and housing.
It's a very simple yet effective shape. I'd imagine this would just be a primary transport vessel that takes people from colony to colony? or is it more of a permanent residence? though if it were just a transport I see cryo chambers as a much better alternative to making space for so many people.
Just like the other vessels in its class, its modular, it can be turned into a warship or stripped down to a freighter, built using massive prefab modules, hooked together with magnets, clamps and seals, inside each module is even more modularity, the only really solid units of the ship are the aft engine section and the fore nose section.