I asked my father and all he said was,
3000 m indirect fire range, 1200 RPM ( by the way all our forces are trained in the machine gun doctrine of short burst firing suppression ) and cheap to produce then the army will change,
I may be wrong but what I think is more needed is is a Squad Automatic Weapon akin to the minimi or a heavily modernized RPD in the 7.62×39 or grendall, this would be a lighter short length,
This could be used for the roles or suppression, should have easy to change barrel so a longer barrel can be used when mobility can be sacrificed to sustain rapid fire for extend periods of time,
If this is done then the MG3 can be used as a GPMG where it will be used for area fire superiority and suppression, while the proposed SAW will be used by squads in attaining section level fire superiority,