I have been attacked on numerous occasions by triple maxim openers from top 100 Sov players in 3v3 RT OKW. Usually on Across the Rhine right side.
Across The Rheine beach side has OP MG42 positions. 2 MG42s can lock the whole area with double pios. Soviets usually need 3 maxims to lock it down. It's just a poorly designed lane, with heavy cover that can lock down half the side. OKW players usually go for double kubel there with aggressive sturmpios behind heavy cover, inducing minimal bleed on yourself, while bleeding and denying the enemy (or you go like a certain OKW level 18 player, spam volks, get them close range and then complain how my rifles are OP close range, even though they couldn't displace (with RE) one sturmipio squad behind yellow cover). Biggest trouble is that OKW opening vs USF. Double kubel with sturmpios. At least for me (don't know how to exactly counter double kubel + sturmpios on that map lane as USF)
Maxim needs only a price reduction, unless a whole rework is in store for Soviets.
It's weak, but not UP. One shouldn't really compare it with the MG42 because one is in a faction that relies on strong teams and Soviets rely on numbers and versatility. Hence, the units themselves are not the problem, but the tech design, IMHO.