Speaking of missing components (such as score trackers for skirmish), this game could really do with a small reference card for the players in the core box. Something summing up the round, your possible actions, and - last but not least - the seven stages of an attack. Would have fitted in well with the five existing reference cards and probably more relevant than some of the information on those.
Actually, I had worked on something like that for myself, but then I was told that it probably wouldn't be legal at a tournament. lol!
Matters related to the sequence of resolving steps in an attack are something that truly does come up a lot.
unfortunately it would have to be an official document to be allowed at tournaments (due to the "no outside material" rule).
I think a few people over at boardgamegeek had made up some great reference cards though if you want to check those out.