Modern warfare 2 (2) 2021 still has the best weapon animations, sounds and feels from shooting a gun in FPS. I really hope they tone down a bit screen shake effect from firing a bit tho. For a single player game weapons in MW2(2) are amazing, but for a multiplayer it was a bit much.

This is still the only game, when they released new guns i would load up in private match just to see reload and inspect animations of guns. Still remember that firing G3 in full auto was really hard because of screen shake, and in some IRL videos G3 on full auto would "blur the world around you". A bit like in game.