I want to adress some of the points I found to be worthy of improvement.
[1]
In some cases I had a weird bug regarding the UI. Some times the tooltip would present the wrong explanation.
E.g. when I try to hit '(N) Next Unit' it would say '(F6) Toggle Unit list'. I also encountered the case in which the '(U) Upgrade Unite' Button would say '(Z) Sleep One Turn'. I tried to reproduce this bug but I had no success. It seems pretty random. Resolution was 1920x1080 32.
[2]
I know that most players will use hotkeys to access the different menus. But nevertheless I think that the buttons above the minimap are too small. Because this is not a game where speed is of utmost importance I find myself reluctant to learn any hotkey. But the small buttons are very hard to hit so I may have to reconsider
[3]
Why is there no option to restart a mission? I always have to keep one savegame from the beginning of a mission before I buy any new units. I don't know if some gamers consider that save scumming but I think it would really add to the game!
[4]
Maybe the most important point of my concerns. The different types of airplanes are hard to keep apart. Often I find myself anoid by the fact that I have to read the name of an airplane before using them. Of course this mostly concerns fighters and tactical bombers. I think that some small images would be nice to differ them. In that fassion:
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Generally I have to admit that I was really astonished to receive such an polished product as a beta version. Up until now I did not find many glitches. And in any case they were minor. I'm very pleased to see that there are still developers which release a game version without serious bugs (except maybe some balancing problems which will only reveal themself after release).
Thank you very much for letting me participate in this beta. I will surely buy this game once it's released