The only version of Shadowrun I'm familiar with - assuming it's even connected to the Tabletop franchise - is the SNES video game I played as a kid. Gauging from the lore you mentioned, it does sound about what I expected though. That was a pretty cool game back in the day.

Anyway, you've already sparked some interest and I'm already overworked, but I thought I'd comment here and confirm this is what I think it is.