Update: I just got informed that the video has been taken down for the time being – and while we wait for some new footage to go up, you can dive into Watson Wu’s ‘Essential Guide to Recording Weapon Sound Effects’ here, and check out his sound effects libraries here.
Also worth watching is Marshall McGee’s video where he explores why the guns in Modern Warfare sound so incredible (and even has a go at recreating them with SFX from Sound Effects Monkey):
