So. I know its not really detailed that well, but we've got a bunch of sources at this point, so I figured I'd try to sort where things might have gone wrong.
As far as I know, we get the first glimpse of the Taurian Infantry Kit in Combat Equipment, which gives a Availability Rating of B-B-B (B for Star League Era, B for Succession War Era, B for Clan Invasion Era)
TacOps gives us a rating of B-B-B, and an introduction date of 3047. Errata would change the rating to X-X-B to account for the lateness of the introduction, presumably.
ATOW goes back to B-B-B.
IO goes to X-X-B-B, with a Prototype date of 3045, and a Production date of 3047.
Obviously there's some confusion :)
I've checked the various Periphery books, Combat Equipment, and ATOW, and for the life of me, I can not find where the 3047 data in TacOps comes from.
Anyone got any suggestions, and/or know where the reference is? Obviously more than half the books were built on the idea that the TC had their armor kit since the Star League era, and the others are built on this 3047 date.