The macro «Gravity Demon» is designed to effectively fight enemies in the game Garry's Mod using a gravity cannon and weapons. 

The essence of the macro is that it continuously freezes your enemy with a gravity cannon, after you have angered him enough. After that, the macro automatically switches to a revolver or automatic weapon and starts shooting at your opponent.
To use a macro, you need to install it in the Keyran program or a similar tool. After that, you need to go to the game server and assign a macro to the left mouse button, preferably on the pinch. Then, pick up a gravity cannon, aim at the enemy and hold down the left mouse button.

After activating the macro, your opponent will be continuously frozen by the gravity cannon. When you feel that he was annoyed enough by this, the macro will automatically switch to a revolver or automatic weapon and start shooting at your opponent.