To start, I don’t think this method of fighting would be practical to begin with.
But your idea is also very much lacking in “fun.”
Many anti-cheats, including BattlEye, will detect macro tools. Most games will ban you for using them (or auto-clickers), or with BattlEye as the anti-cheat you’ll usually just be kicked.
Macros (and other such things) are frowned upon in a lot of games. This is partly what resulted in the “semi auto bug” (which was intentional as a countermeasure, iirc).