Other than PD, we have all of the real fundamentals in at least tolerable form. However, we don't have boarding shuttles or naval garrisons, and we have no disruption weapons. We have armor but it's of middling quality. Our torpedoes are on the sluggish side, and although they're hilariously effective against thin-skinned ships like raiders and ork garbage heaps, they probably aren't very good against heavy armor.
And for the record, the MkII savior design in the roundup post doesn't make sense to me. I'm pretty sure the pilot's ability to withstand g-forces is not the limiting factor there.