by Tony1978
You're right. Jervis Johnson's expansion lacks of many other rules.That's why me and my group prepared a set of additional rules (and cards) for termies and scouts.
At the moment they're only in italian language, but if you can understand it, you can download the pdf here
http://www.boardgamegeek.com/thread/694200/my-second-work-i-...
Maybe you can give me other suggestions. :)