Number 16: More users friendly control
a. Ergonomic1: Mouse only control
I'm using old Logitech 9xG and able to map all button required to play SPWAW without having to touch keyboard. I mapped back/forward for N/P, scroll click for shift-click, scroll left/right for Y/Esc, resolution up/down for T/F, scroll up/down for zoom in/out. So I could play without keyboard at all.
But I wish non-gaming mouse could also be used for that, that is at least: scroll up/down, scroll click, back/forward button.
Or, if you're real nice, creating more complex context menu on left clicking each units.
b. Ergonomic2: Keyboard only control
Same concept as above, but without mouse. The 6 keyboard represent 6 hex around: I, O, J, K, L, M, < or WEAFZX, so that player could move the unit per hex, without using mouse.
Then map all button to the numpad, so that right hand could operate entire menu (that is F, N, Y, P, Zoom in/out, etc, mapped to numpad 1,2,3,4,5,6,..., +,-,*,/,etc).
All button should be mapped to keyboard (including for example aircraft entry/exit path), and the number should be minimized.
Mind player health...
c. Chain of command instruction: make it possible to instruct entire unit, per section, platoon, company, battalion, brigade, and for entire division. Might use shift-click on commanders unit, or check box. This should satisfy above request for setting all units range to 1.
Number 17: Larger resolution, more zoom in/out
I think more player playing using 32" or 42" monitor. 1080 resolution minimum, 4k better.
Some might also use multi monitor but I thing having the game running while working at the same monitor is a must . Windowed environment.