All I can recommend is reading the book Eisenhorn [http://www.amazon.com/Eisenhorn-Warhammer-40-000-Omnibus/dp/1844161560/ref=sr_1_1?ie=UTF8&s=books&qid=1247848137&sr=8-1] by Dan Abnett. It is an epic story, and really, really well written. It's a three part book, and I've only read the first...