This is a universal add-on for any single player mods!
This add-on changes the default weapon settings, allowing you to use artillery support at any time in the game.
To get it, just type "give defaultweapon". I recommend using it at long distances, as well as when storming buildings, but on condition that you are outside.
Note:
1) When using "artillery support" in the hands of the player, no weapons will be displayed.
2) Installation - just unpack the contents of the zip archive into the root directory of the game.
3) The screenshot shows the moment of the defeat of the BMP "Bradley" in the addon "PMC Wagner - saboteurs".