Board Thread:Warhammer 40k General Discussion/@comment-112.207.225.45-20160827022941/@comment-7390107-20160829112704

Let me clarify this

Thunder Warriors are the very first genetically enchanced warriors. That 100% sure and here is why:

"They were the first gene-enhanced warriors created by the Emperor and served as precursors to the present day Space Marines"

Their role was to unite Terra under the Emperor's rule and in the Imperial chronicals the last of them was killed in the final battle of the Unification Wars.Or so it is written because as i remembre some of them were still alive...But you need to read that for yourself.

And with that the Adeptus Custodes came after Thunder Warriors and even after first Space Marines. Since they are custom made models, who came after techniques of mass producing new Space Marines were available.

I mean you can read all of this on the wiki just search it.