Since i want possitive feedbacks even in those treads where OP is just whining, I can drop an idea or two about panzer tactician smoke.
The ability itself is focused of better tank fighs for OST.
Watch how the smoke screen pops in this video
https://www.youtube.com/watch?v=aHEw0i-KIkM
In the game, when you press smoke on tanks, make it two or three little blobs of smoke a few meters in front of the tank only, that way you block effectively line of sight on a bad tank clash. This way it demands a little more skill to use.
Or make it pop automatically when the tank health drops to 50% not before, not after. this way tanks become more a defensive tool, or forces the player to use them that way.