Ok, let's go on points:
1. Maxim is effetive when spammed. I should say, that MG-42 is quiet effective when it spammed too.
Maxim gets more effective when spammed, mg42 spam leaves you wide open to hard counters.
Seems like you didn't actually read what i wrote.
To eloborate: light vehicle's of any kind will rape mg42 spam (yes that includes the m3) but my personal favorite way of beating mg42 spam is with maxims.
Maximspam? in my 3 years of playing coh2, i have yet to find a true hardcounter to an all maxim opening.
And ofc, the maxim is good enough on it's own, its just that spamming them increases effectiveness by about 300% while decreasing the micro requirement by an equal amount (a-move maximspam best spam).
2. Maxims are good in buildings. Of course, and that's only way to use Maxim as deffensive weapon.
Hint: maxim is not a defensive unit and maxim is as good as m42 in house, and better in the open.
But sure, keep using the maxim as a defensive unit and fail with it.
3. Maxim cheaper than MG-42. Yea, don't forget, that you have to pay (and say goodbye to snipers and penals) for building T2 for to get those "cheaper" maxims. MG-42 costs more just because they are now in T0, before that they both had equial 240 MP cost. So, prices here is not a balancing feature.
Giving up penals? You must be the very first person ever to feel sorry to give up penals for maxims.
Not to mention the fact the atgun comes in t2 aswell and sov has enough resources to begin building it right away.
And you know, you could even go t1 after building t2, but only pro's can pull that off...
USSR is pretty poor in defensive game right now. No bunkers, no fireing positions, no emplacements... And even HMG is not suppoused to be deffensive. It makes disbalance in inner mechanic of USSR - too much offensive, to low defensive. All other factions are balanced in that way, more or less.
If you don't want to make Maxim defensive MG, then give to USSR alternative - HMG emplacements.
Another hint: sov is not a defensive faction.
If you want a defensive faction, play ostheer or brits which (surprise surprise!) have defensive HMG's.
It's almost like it was balanced this way...
Anyways im sure you will disagree with everything i wrote and keep disagreeing with everyone just becuase you want a sov mg42.
Luckily, that will never happen.
EDIT:
tl:dr Don't use Maxims like MG42s and you won't be disappointed.
Qft but with the addition that spamming maxims with a-move actually become something akin to "order and forget" units.
It always brings a smile to a my face to see a maxim of mine turn around and set-up on it's own to stop an incoming attack.