Not really impaired pretty effective being able to be a small hit box and sneaking up on people with some of the most powerful guns in game. Sure they can use any weapons but there heads are huge making for easy headshots targets and its like shooting at stationary targets how slow they move. People just try and play smaller body types too aggressive like they are a meatshield which they are not they are the agile cats who pick off weakened enemies and harass the enemy team.
I'm all for faster reloading speed for all body types!
I think it's an awesome idea!