Slitherine

More campaigns, please.
Allow player to absorb an auxiliary unit into the core mid-scenario, perhaps only after some kills...
Allow player to toggle difficulty during a campaign (this would be huge)
Allow player to use prestige to purchase heros and/or more core slots

Personally I think the game is well-rounded as it is. It would, however, have been rather awesome if every dlc had its own unique panzer camo-scheme. Eg. panzer grau 39-40, panzer gelb 41 and some cool camo patterns for the later years. Just a thought.

The game is excellent, mesmeric, well-done. More color, more chrome, added with care, could take it up a tiny bit...

Guys take a look in the Scenario Design section of the forum above. You can load in different camo's for your units when you play. Im running 5 different camo styles in most my games and makes seeing the game amazing. If you post a question there about it, there are some real smart great Modders that can help you out. They have always been great helping me

For more core slots, check the cheat code/hot key topic in the forum, you can set your core and increase it during the game.