Saw this a while ago, but forgot about it, then found an email with a rulebook update for "Death Squads" - a fan based set of rules for 40k based around small scale detailed skirmishes.
"Death Squads" goes back to 4th edition style Kill Teams and borrows a lot from Necromunda and Mordheim to provide some very detailed options in your 40k play.
I've not had a full look through the rules, but it's free to get hold of (you just need to register on their forums) and worth a try.
Download Link: HERE
See what you think and maybe MAWS can give it a go sometime soon :)