You can spawn vehicles, weapons and ammo (ArmA 3 defaults only) and these will be air-dropped to your current location. changing the weather only works for a short time), almost of all them are. Although not all the functions will be usable (e.g. Kronzky is a Bohemia contractor and his Support Call add-on has been around for quite a while.
But if you really wants some cheats in single player, then you can add them using add-ons and mods.
Ravage is designed to be difficult and using cheats will remove a lot of the fun.