I guess this is sarcasm but do you really think it should require 4 squads, each costing more than the mg itself, plus the additional ammo cost for grenades to counter this one cheap starter unit for ostheer? If he had a 2nd mg backing up the first one on that map your flank would probably have just been shut down immediately. Anything can work vs bad players but balance is not determined by the theoretical possibility that countering a unit is possible. Balance is achieved when the effort in countering a unit is comparable to the effort required to use a unit.
Its easy to try making this a L2P, try flanking issue but the fact is that good players anticipate a flank and focus on choke points, plant mines, and have secondary units available to break up a flank, or rely on off-map abilities like strafe. If flank execution is much more difficult and requires much more micro than preventing a flank does then balance is off.
Yeah which is why most people are just calling for a moderate price increase. Ostheer lacks for MP/early game power pretty hard so the MG42 being good is essentially to stop Ost from being overwhelmed by Rifle/Con spam early in the game especially on close range maps were grens can get forced into CQC and die.
260-280 MP would put it in a good spot. I would also combine this change with cheaper Pioneers tho as them costing 200 MP still is kinda silly and it would be a nice trade off, more expensive MG but less expensive builder unit.