IIRC, the armour/weapon upgrades are per unit, valour is per man. Morale, who knows. The "captain" controls the unit's equipment. So you can merge/fill units and get "free" upgrades (or downgrades, if you are going to the desert ).

Quote Originally Posted by Vantek
It's annoying when depleted units always get automatically joined when you put them in the same army. This can cause a loss of a decent governor, as well as armour/weapons upgrades. They really shouldn't join unless you tell them to. There's the M key for that.
You can control this. In the minimap options, you can turn auto-tidy units off.

As far as changes I would like:

Updated video support, of course.

Less hardcoding of certain mechanics for modding purposes.

Better empire management UI. In a game like MoO2, you had the ability to pull up a scroll with all planets and a summary of what they were doing, with the ability to change certain tasking from that scroll. It would make it a lot easier to manage a large empire with this.