What you're actually talking about is how to play the missions well and write good tournament lists that take the metagame into account. That sort of thing should never be in the rulespack as its what you learn yourself and what seperates good players from great players.I have been playing for over 20 years with a reasonable rate of success. I have had my eyes opened by some seasoned Tournament Vets who have shown me a new way of looking at lists and composing armies, and what the victory conditions in a tournament actually mean.
For example, should the rulebook tell you to hide that unit with 2 models left for the rest of the game so that you only give away half points for it? No, thats the kind of thing you must work out for yourself or from seeing others doing it to you.
Looking at the rulepack tells you that you only really need to get a minor win if you read between the lines. In a close game every VP counts so playing accordingly will help you win. However it doesn't need to say that in black and white in the pack.
Looking at last years heat results tells you that you need 4 wins to be certain of qualifying. Thats all publicly available data that you can use to work out what you need to do.