You gain the wargear common to your chosen power. This scales with your strongest power from this universe, so if your strongest was a space marine you'd get wargear for that, and if your strongest was custodes then you'd gain wargear for that. This scales all the way up to the Emperors personal wargear.
Wargear (40k)
Cost: 5 SP
Required: Adeptus Mechanicus (40k),Beta-Class Psyker (40k),Adeptus Astartes (40k),