Crimson Revenant ally in Mr. G arc?

[Zombie Hustler]

I just finished the "All in the Family" mission from Mr. G, and had to fight Crimson Revenant. When I last played the arc, on test (pre-sunset), CR actually allied with my character against the family, rather than fight him. I thought it was because I had the CR badge (Hammer Down), but I also have that on the toon I just played with. 

 

The only difference I can think of between the two is that I was only able to complete the "Taming the Tigress" story arc on CR with this toon before outleveling his missions, whereas on my pre-sunset toon I had played through all of CRs missions. I'm pretty sure both toons were Rogues (although it is possible my pre-sunset toon was a Villain at the time).

 

I may also have started Mr. G's arc on the current toon before getting Hammer Down, although I definitely had the badge prior to starting the "All in the Family" mission.

 

Anyone else run through this and/or have some thoughts on what might have triggered CR as an ally vs. an enemy? Paragonwiki was never updated to include CR as an ally, so it has no information to provide to me.