Quality of Life Changes
There were a few features that I thought could be added to make things just a little bit easier on the player.
1. Resources and boosts in one click
This feature would make a calculation of required resources and time left on an upgrade and automatically apply the appropriate amount of items to upgrade, train troops, and finish wait timers. This instead of a player having to scroll through their vast array of different items to apply the amount they need. Also in the cases of rations going away to fast after an item has been applied forcing the player to go apply another resource pack.
2. Make the map icon more noticeable.
The map button is in a very weird place and even after playing the game for awhile I'm still not used to it. You have the big black market tab above, which is highlighted in green and the contracts button below it also highlighted in green. Perhaps moving the icon to be in a place separate from everything else or highlighted in a different color would make it more noticeable.
3.Specific selection of units
Now I know there is a feature where you can type in the number of units, but I personally would like to have buttons that would select units in certain values. Say like a button to train 10, 50, or 100 units or select that many when sending units out. This is a little more nitpicky, but it would be a welcome change as personally I don't like having to go in and type out unit numbers.
4. Selection of offensive and defensive numbers.
Say especially for ZHG or Cobra missions I want a certain amount of offensive and defensive power sent on a mission to maximize payout. It is an annoying task to get my number down to where I need it. Maybe if there is a system to input how much power either offensive or defensive the game could calculate an amount of units close to that number and select them for you. On the same note, it would be a nice feature to have a recommended amount of power for each mission since it's annoying to go look up the player made charts.
5. Condense the referral link to friends
I cannot tell you how many times I have had friends turned away from my offer just by looking at the massive link I give them. Perhaps finding a way to condense it and make it look a bit more pretty would help get more players with it.
Overall, I'm not sure how much work these would be, but I think they are small changes that could make a huge difference.