How about make MK17 a 1HK weapon like G3/FAL, and increase its price? To be honest, I think MK18 should be the 3 SP weapon for advisor role and MK17 needs a damage increase to perform like a true battle rifle or at least make it 1HK on unarmored target!
Right now, MK17 is like a downgraded AKM with slower rate of fire, smaller magazine capacity, and harder to control.
MK17 damage model adjust