I just read this article (klick) and I thought: "Hey!! This could be nice!"
500pts, no monsters, no vehicles. Small corridors, some rooms filled with, well, stuff.
Thats a nice, klaustrophobic and bloody mix of standard 40k and Killteam.
Whats more? It just might be, that we have some pretty neat toys for this scenario.
Incubi should be even deadlier, hiding around a corner, safe from initial fire.
Hellions count as Infantry. Super fast Infantry. The possibilities are obvious.
I think, I just start to tinker a bit with a 500pts limit, to see whats possible.
When I'm good, I'm very, very good. But when I'm bad I'm better.