You have most probably been playing Wolfteam International
for the last two years since this version is barely 4-5months old...
I'm not sure if you have the wrong site here, personally I think you do since you don't seem to realize Aeria doesn't control what content gets released for this game.
Aeria take good suggestions and general ideas and pass them over to Softnyx. From there it is up to Softnyx to decide whether or not to implement those ideas.
If you want to suggest a new weapon for the game head over to Gun Suggestions
and give them any weapon ideas you have.