While every device is different, most "headshot kings" use a high-sensitivity setup. Try starting with these: 95 - 100 (For fast movement) Red Dot: 90 - 100 2x Scope: 85 - 95 4x Scope: 75 - 85 Sniper Scope: 50 - 60 Master the "Drag Headshot" Technique
Searching for might lead you to videos of easy wins, but it's a shortcut that leads to a dead end. Between the risk of losing your account and the potential for a virus on your phone, it simply isn't worth it.
Removing the kickback of weapons like the AK or SCAR. Aim Lock: Keeping the reticle glued to a moving target.