I am not sure if this is just me but it seems like the audio of your character's feet hitting the ground is off from the animation. It isn't as bad in 3rd person view, but it's still off. In first person view, it sounds like you are walking faster than you really are. As if you are taking 3-4 steps (audio) when it looks like you only take 1-2 steps. Part of it may be the bob of the gun in first person, but it doesn't sound like your pace quickens when you sprint either. It's like the sprint audio accidentally got applied to all movement. Anyone else notice this? Try it out yourself. Find a metal floor where music is quiet or nonexistent and just run back and forth for a bit. Do the same in The Tower and just watch your feet the whole time.