I dont really understand how that can be abused. Im being honest i dont have a clue. Im really tired after a long day.
MG34 is given an automatic reload order after 8 seconds out of combat. Opponet enters MG arc but is able to pull away without being suppressed. Waits 11 seconds due to MG being in combat. Charges MG after waiting 11 seconds and the MG is mid reload when the charge begins.
So in theory you'd be able to get closer than normally possible since the MG would be reloading, and there's nothing the player could do about it except fight the charge with a slight disadvantage, or giveup the position.