There should be footsteps/flight sounds in the game

Alot of characters do have footsteps sure, but it seems many characters don’t have movement sounds. IE Iron Man, Storm, and I just played a game where I’m literally 10 meters away from a captain America running down and punching my teammate and I don’t hear a single footstep coming out of him as I heal my partner who he’s trying to kill. I didn’t test it but I’m sure there are many characters who don’t make a single sound before they pop out of nowhere and wreck the entire back line before they can react