After pasting the config, open Free Fire Max:
Swipe your fire button quickly upward toward the top of your screen while shooting. HOT-- Free Fire Max Auto Headshot Config File Download
The primary selling point is the elimination of recoil and manual aiming. When you fire, the crosshair automatically adjusts to the enemy's head. This works across all weapons—Assault Rifles (AK, SCAR), SMGs (MP40, UMP), and even Shotguns. After pasting the config, open Free Fire Max: