Raid of Ta'ge'raw 9

The Raid of Ta'ge'raw 9 is an often unremarked and mysterious event that occurred in the annals of the Gray Hussars Space Marine Chapter when they encountered mysterious Astartes that were being pursued by the venerable and enigmatic Dark Angels Chapter.

Background
The Gray Hussars 1st Division entered the Ta'ge'raw system, home to a Hive-World (Ta'ge'raw 4) and a Death-World (Ta'ge'raw 9) where the Gray Hussars took their Neophytes to conduct survival trials in both environments, first in the deepest gang dominated under hives and then survival on the frozen tundra stalked by deadly predators that come out of the mountains to kill the hearty-warrior nomads. The Neophytes that survived a month of survival training upon the Hive-World, Ta'ge'raw 4, landed on the Icy Death-World, Ta'ge'raw 9, and the second day into the trials the observing Knights from the third Brigade spotted some mysterious figures dressed in Astartes armor and were reported to bear the resemblance of Dark Angels.

The Gray Hussars 2nd Brigade tracked down the figures to a bunker complex built into a mountainside. The 1st Brigade's 1st Platoon of Terminators dropped in outfitted for close-quarters breached the bunker when they failed to respond, concluding the Astartes were either Renegade or Chaos affiliated. The Terminators breached the structure, twelve renegade Astartes fought as desperate struggle, but were no match against the Terminators Veterans, cutting down ten with two barely holding onto life, with only wounding a single Terminator. The two renegade Astartes were tortured for their information, discovering that they were renegade Dark Angels, known as the Fallen. Lord-Knight Putsch von Ruuns ordered the contact of the Dark Angels to return their renegades, agreeing to meet in Magog Sector with the Dark Angels' 2nd Company, the Ravenwing.