One thing I wouldn't mind adding to a tooltip (or even to the planetary summary) is some indication of what a unit
does. We don't have to be too specific here, given the sheer boatload of ship types there are, but a small symbol would be helpful that gave a better hint as to the unit's primary purpose.
Some sample categories:
- a symbol for non-combat units (scouts, etc.)
- a symbol for support units (ones whose use isn't so much that they shoot other units, even if they have an ammo type)
- a symbol for assault units
- a symbol specific to the triangle units
- etc. No more than 8 to stay meaningful.
Even though there are numerous sub-categories for any of these, having a small set of easily-learned symbols nearby the unit name in the tooltip would quickly convey the character and intent of the unit design, if nothing else.
Also, and this is a very separate point for me, but it always bugs me a bit when I see a sci-fi game use icons that are out of context for the game, even if they are more meaningful to the user. This is partly why I am a bit anti-icon. For example, for a ship's speed, you might be tempted to represent this with a sneaker/trainer, and the symbol for a gasoline engine to represent the engine status on a unit. I find this a little jarring, and it affects the character of a game in a small but significant way.
There are some symbols that are so universal that they don't do this, such as a lightning bolt representing energy, but I'd imagine we'd run out of those quickly. Some symbols are only slightly inappropriate for the sci-fi theme, but are so common that they escape notice, such as using beakers to represent science, a gear to represent industry or manufacturing, or a wrench to represent repair. AI War takes place in a sufficiently advanced future that these come across as anachronistic, but are so common they don't stick out the way other icons might.
Lastly, it may be prudent to hire an icon artist for these, who specializes in very small, but meaningful icons. Like this guy:
http://p.yusukekamiyamane.com/ (Because of course Arcen is made of money.)