Someone had already posted a suggestion regarding the hard setting for the Arcade mode. I suggest that instead of having fixed settings for Arcade that you have the same difficulty sliders that are available for the campaign. This way you can tailor the game to meet your specific challenge level. I also suggest that these sliders be available for the AI in the multiplayer skirmish games. Another option to add when setting up Arcade and Multiplayer games is an initial fund amount so you can have games where players start with a cash level to finance their initial military position. Thank you.