I often want to find a specific unit. For example: maybe I want to bring an Exploring ship back to port, or find artillery to help with a siege.
In Civ 4 I could go to the military adviser screen and see an awesome map, filterable by player and by unit type, showing the location of every individual unit my civilization was aware of.
Civ 5's "Military Overview" (F3) is a pale shadow of that. Among other things, while I can see which units exist and what they're doing, I can't seem to find where they are.
Am I missing something? Short of that, I'd be happy just for something that let me cycle through all the units, but all I've found is a way to cycle through all units that are awaiting orders—useless if a unit is exploring, fortified, or asleep.