Thanks for the detailed reply! That helps a lot.
Do you recommend scatter terrain to be lof blocking, or just enough to provide cover, or a mix? Or does it depend on how much unobstructed hallways there are after placing the large terrain pieces?

As I get more into Infinity I definitely want to put together some dedicated scenery (got lots of warhammer terrain, but cyberpunk would be a nice change from dirt and crater styles), but that might depend on whether I can get people around me to commit to it, so demo games