I think Red November is a very nice little gem, but I found the rules really hard to fully understand. And that is a shame, since the mechanics of this game are quite simple as soon as you get hold on them. If you find the rulebook as cumbersome as I did, I can recommend a few links that might ease your journey to fully understand the rules.
At BoardGameGeek Orin Bishop has made a fine little review in which he explains the rules:
Eric Herman have made a video review in which he almost get the rules right. In the third part of the review he makes a walkthrough of a turn, that shows how simple the game is: