Concise description:
add a few short "play by play" demonstrations to show people, rather than just describe, how various attacks, games, etc work.
Specifics/Details:
Along with the written instructions, have a couple of "demo modules" that would show people visually what is described.
For example, you could click and see what happens with a bombard, side-by side with what happens in an attack. Examples of various bonus types, fog, etc.
In a few cases, maybe even a demo of the game (thinking of an example of classic, plus some that confuse the most people, such as AOR, Fuedal, etc.)
In addition to differet attack types, spoils types, fog, manual versus automatic, you could include how to play Assassin, team basics, etc.
NOTE, this is NOT a practice game or any such. There is no interaction, just a "click and see a demo deal."
How this will benefit the site and/or other comments:
some people pick things up by just reading, but a lot of people need a more visual example.
I think there is enough talent out there to create a few short demo-plays to illustrate exactly what is meant by each game type. The only real question is which examples to include and if it would take too much server space. However, even if the full list above cannot be included, I think a shortened version would help.