"Once the Dynasty moved it's operation to the eastern sector they had came across worlds with varying facilities to make wargear. However the systems where offline and would require the Mechanius to get them running. It was presumed these are abandoned Mechanicus works however why all this was left behind no one was able to figure out why. Seeing the potential the Dynasty would make its home system here, they could not use the facilities themselves yet. However something would come alone providing an interesting agreement, Tau Earthcast containing The engineers, laborers and scientists would approach the head of the Dynasty at that time. The Tau in question would secretly approach the trader while they bordered Tau Space having meet with some Tau leaders prior. Not wishing to live under the oppressive reigns of the ethreals they asked for shelter in exchange they would hand over Tau Technology which included Tau battle suits and technology related to them (versions used by the tau in M41), plasma weapons and drone tech. to the dynasty having taken it when they fled from the rest of the Tau during M41 close to the end of the second sphere of expansion. The head trader agreed to their demands however he had a better idea also he told the Tau Earth cast to study the facilities on the planets and get them running into attention the facility's contained all the data needed to make anything for the dynasty from warp drives and vehicle parts. The Tau being masters at their craft could also figure out how to build anything from taking apart one model of it. Up until this point the dynasty relied upon the adeptus mechanics to service its fleets and manufacturer wargear once the Tau finished training human crews for this Task which was done in secret. Once this was complete and the dynasty no longer required the Mechanius and they where expelled from the areas and human crews now took over this place. Free of the cult like mind set of the mechanius the once dormant factories roll out advanced wear gear in much less time with innovations always be sought to be created. The Tau Cast who joined them continue to live a free life and are just asked to assist with technology matters and nothing else. It should be noted human crews use construction based suits to do work based off Tau battlesuit designs.

The Tau understood they where taking a risk for they couldn't be sure of the life offered to them, however the trader in question agreed to their terms and even presented his official seal. Something he could not violate with back stabbing. Still not knowing if they would get a second chance they agreed the risk was worth it."