Call it old age, but when I get a rule set with more than 20 pages and I want to improve my ability to remember it, I retype the rules in a condensed version that assumes I have a base knowledge of the game, but otherwise lays everything out in the order that makes referenceing those rules easiest for me.
That's whay I call these the Vetern Soldiers Rules Summary. It assumes you've at least skimmed through the rulebook first (although I'd be curious if someone who hasn't read the rules at all can make sense of it).
This basically reduces the core rules (not including special rules for units and weapons) to 8 pages of 14pt font with clear titles (and hopefully clear layout).
This is a first draft, and I may put it up in the files section if people think it's decent. I'd be very interested if people think I've covered the rules accurately.
Let me know what you think.