Really glad you liked the game! And thanks for the feedback
"The enemy advances with every second action you take" - Ah yeah, I think I might have worded this a bit clumsily. ALL enemies will move after every second move action ANY of your crew makes. If you watch the enemies' eyes they will sometimes glow, and they will animate more quickly - this indicates that they will advance immediately after the next move you make (NOTE: there is a special enemy that breaks this rule, and makes an entire column move every turn until that enemy is taken out).
You are bang on about the ability guide though! I think I have a bunch of details over on the lexaloffle forum where I posted about this game during it's dev. I should copy some of that over here as maybe a separate dev post soon