>>714684520
>It seems like it was only added to promote the Arbiter class in Darktide which conspicuously came out the same week.
You aren't too far off from the truth.

>>713600578
With Helldivers it's a happy coincidence.
With 40k it's that GW's advertising cycle as finally caught up to the Arbites release from a while back, hence why both Darktide and RT shoved in the dog since that's part of the box.