Talk:Excalibur/Umbra/@comment-74.192.80.24-20171026085349

If I'm understanding the lore correctly, the Prime frames are the first iterations(Orokin built) of the normal frames(possibly based on old designs or reverse-engineered by the Tenno), so does that make the Umbra frames the next Orokin form of frame(unable to be used or fully realized/put into mass production before The Old War) or expansions on the frames by the Tenno themselves?