MGs shouldn't just suppress blobs, they should rip them to shreads. Some way of allowing that without having MGs melt individual squads would be really awesome
Not just HMGs, Incremental Accuracy (on the weapon) or a Received Accuracy penalty (on the blobbed squads) would also allow all normal weapons to deal additional damage, to simulate that missed shots would still hit other squads in close proximity. This would help make fighting blobs a bit easier as it would help equalize the pure volume of fire advantage blobs have.
Or most ideally, a CoH3 would be based on a new engine that supports advanced ballistics, that can simulate all small arms bullets so that misses by Rifles/SMGs/ARs/LMGs/HMGs can hit other models in close proximity.