in some moments poor optimization, sometimes it can lag, especially with zooms,
the graphic design is standard, it does not delight the eye,
no chance to hit in the official version, even as a choice,
no all JA JA2 JA2.5 mercenaries,
the faces of some of our heroes are quite different from the original,
the characters always have one outfit, you can't see any changes when we mix their wardrobe,
mercenaries always follow a marked path, even if there is a visible mine on it,
Shadow is not wearing such a strong and distinctive camouflage as in JA2,
no camouflage skill or camouflage kits,
stealth mode not working properly, enemies will see you anyway,
not very intuitive interface,
no possibility to change the camera angle while zooming,
inability to switch to turn-based mode at any time when the enemy is in the sector,
the ability to turn a mercenary standing still has not been implemented during combat,
grenade explosion does not knock down enemies, they take damage while standing still,
the game does not have simple mechanics, it is a bit complicated because the dependency system is large and you have to learn it and spend a good few hours on it,
small maps,
no minimap
no tactical break
no Bobby's Ray lack of ammunitions

You know, spamming this forum every few days with pretty much the same post doesn't really help make things better.
Also,*many* of these complaints also applied to the first two games in the series, and some are far better in the new game than the old ones.

it is extremally important that Creators notice the will of the all Users IMHO.

Except those who cry about the smallest things.

So you represent other buyers as well or just yourself?

Most of your complaints can be summarised as follows: "They changed something. I don't like change."

There's a bug reporting tool built into the game menu. Feature requests are raised as issues on many github repos, maybe they'll view your requests in that (or maybe not.) I wouldn't putt all your gripes into one issue, though,

Those reports go to the dev team, so they will at least see them. Unless they aren't accepting feature requests so they can focus on fixing bugs. The bug reports also allow you to send the current game state so they can see the exact issue.

There's also a forum on the game website and the devs do read it.