I'll probably go with plain old full plate or possibly Heavy Plate. I am designing this primarily to fit Walufar, where battle plate represents Gothic Plate and other types of plate mail of that era, while plate mail indicates the earliest forms of full plate and heavy plate as something in between. The idea is that hobgoblins, while more advanced than most human civilisations, are not quite on par with dwarves when it comes to metalcrafting.
Thank you. Does anyone happen to know if a lawful variant exists as well?
Hmm... I might just have the basic amount of concealment be halved (10% miss chance) which would rise to proper concealment when the partial set bonus is active.