One thing that has been greatly overlooked is tooltip accuracy. Besides obvious typos, there are many commanders, intel bulletins, unit descriptions, upgrades, abilities etc. that are wrong, at times being even empty!
It would be easy to identify them, make a list and fix them. I would gladly contribute.
As they are right now, they make the game look very unpolished, while at the same time making it hard to new players to get started.
check this:
https://www.coh2.org/topic/93861/feedback-on-ui-changes-of-the-game