If you want to use trainers for fun in the campaign or offline spec-ops:
Most players pull down on the stick or mouse. The pros use "recoil smoothing." By strafing left while aiming right, the game engine automatically reduces visual recoil. call of duty modern warfare 2 2022 trainer top
For the competitive player, "trainer" means training. Since Modern Warfare 2 (2022) does not have a robust native aim lab (unlike CS:GO or Valorant), the community uses third-party software. These are the true top trainers for MW2 2022. If you want to use trainers for fun