To be fair, I'm doing a lot more than just using Isolation for perspectives -- if that were the case then I'd be extremely limited given some of the locations we hit, but I AM using Isolation as a pretty strong reference point, just because in my mind, it nailed everything down, and a lot of the places we visit are places Sevastopol has (hospitals, fuel depots, airports, bars, office blocks, etc.) so seeing what's used and how is definitely something.
But to add to that, I wouldn't be doing this if it weren't for Denny or Mark. And Mark's been a tremendous support on Facebook. They laid the groundwork, and I'll add Plunkett to that, and Mignola. Even Maleev's AVP stuff was a big inspiration.