I don't get it, why is titan fastest? If say titan and hunter and warlock all have same mobility, aren't they the same speed? Each class has their own exotic leg armor that increases sprint speed also. And hunters have a skill perk that increases sprint speed and couching speed even more. Shoulder charge didn't even change the speed at which a titan could move. You would lose momentum after shoulder charge, for top speed (and wanting to jump), just double jumping is faster. Then speaking of tankiness, all classes have the same resilience (based on what armor you wear) and the same health, same shield. So there is no tanky class overall (I might say devour warlock here based on the sheer amount of health regen + overshields they can get)