Does EA's anti-cheat system actually work?

I understand. But their behavior is truly baffling. Why spend money on cheat codes and cheating devices just for a game? A game is just data, and K/D is just a number. Why gain a sense of honor in a game this way? It's meaningless behavior. Spending money to cheat for a free mode, or even buying the game to cheat, what good does it do even if they get first place? They become despicable people in the game and losers in real life.

I think your method is feasible to some extent. In addition to detecting the cheater's movement from a macroscopic data perspective, I think we should also add detection of the player's perspective, whether the weapon is functioning properly, whether the bullet direction has been changed, and if the cheater has enabled unlimited ammo, detect the changes in ammo quantity.