
I am attaching the image atlas file for the icons, they are listed in increasing order of difficulty. The icons are 26x26 in size. If you can't compile master, just modify the attached file with new icons, and I'll make a screenshot of how it looks in the game for you.
The ideas I had for the icons was something neat and cuddly for easy, then increasingly nasty as we go up the difficulty levels, ending with perhaps a nuclear blast. Bonus if the icons have some kind of symbolic relation to the Warzone universe, but this is not required.
So, have a go at it!
