Some of you may not have heard of Blackfoot studios, but apparently they have catered to the R6/GR community for quite some time. They helped to design a stage on GR2: Summit Strike.
Apart from this, I'd also like to say that they posted a couple of screens at Rainbow Six retreat. Now this may or may not be related to this new Clancy game. But because Blackfoot studios is being very secret about their title name, I wouldn't pass the idea up. Go to the below sites to check out the screens.
(Note, this site has a nature image with pines and such. Looks like it could be North Carolina. The new Clancy game takes place in the US right? Hey I know this is just an assumption. But who knows, maybe Blackfoot studios is in on this game too.