There are maxim may not pin units quickly but it kills them faster
It might be a surprise to you, but its not true.
Close range, MG42 wins in DPS, hands down, no competition.
At mid range they are equal.
At far its 3dps for MG and 6dps for maxim.
With incendiary rounds, MG42 is single most powerful small arms in game, leaving even DSHK close range with AP amo far behind.