I had so much fun playing 3rd edition 40K from when it came out until Uncle Sam deployed me to the mid-East; so much fun that I decided I still wanna do throwback games 24 years later. This particular book, Chaos Space Marines, presents heretic astartes at their best where unique rules for each of the traitor legions first took shape and character and unit customization was the most free and versatile it ever would be.