Why would we put in the Epoch, when we had to scrap the Athens, which fulfilled the same role as the Eion? That's too many ships that do the same thing, it's already bad enough as it is. Why would you want to add to it? What purpose does it serve? Does it add to the faction/gameplay?
Battlemage please
Don't tell me 'please' once again, if you're only asking questions. Please.
Answering:
1) Because Eion is a light carrier. It can be a cheap choice if you need many squadrons on paper ships with bad PDGs. Epoch (or Athens) supposed to be a havier version, whicj can be opened after Eions. With additional squadrons, better PDGs, armor and HPs.
2) Too many? Then cut off hangars from all capitals, leave Shivas only to one ship class and paint them all in different colors. There are fleet roles between light escort carriers, real carriers and command super heavy carriers. If you can't understand this, them I must say I'm sorry.
3) I want to add it, because it's a beautiful ship with long story, presented both in Lore and Halo table game. I like the model and I don't want to build capitals in order to capture them every time... especially with current Athens stats.
4) It will separate roles between escort/system security cheap carriers and real carriers, adding a new unit instead of Phoenix expanded hangar bay as primary heavy carrier class. Also, Epoch could provide a good defense from fighters to nearby ships and have some sort of "defense formation" perk for all nearby ships.
I really can't understand you. What, all of you are Adam Smith fans? "Why do we need better, different product if we have a simple one?"