That's not an easy alternative at all.
My main issue is that Maxims need a 6 men crew for the deathloop issue and are therefor very durable, while also being available right at the start of a game (unlike the M2HB and DshK, that can have better stats to compensate for the deathloop instead because they come a lot later), while also having a faster reposition time than the other T0 HMGs, which means it can't have good stock stats because then 2-3 Maxims would quite easily shut OKW down completely on corridor or urban maps (like Red Ball Express or Lienne Forest) right from the start because OKW does not have anything in T0 that could counter it (USF had a T0 mortar added to deal with early HMG 42s for a reason) besides flanking/overwhelming with infantry, which isn't possible in corridors or against garrisons.
Besides that, there's always the risk of enabling the infamous Maxim spam again, which is something I'm sure everyone would like to avoid.
At the time, conscripts were awful, the maxim span on a dime and set up near instantly, and they capped at normal speed.
At the time, maxims cost 240. At the time, maxims were strictly better than conscripts in every way.
The context that allowed maxim spam to reign supreme is no longer the reality of 2019 CoH2. A decent maxim would do little to nothing more than what MG42 spam can do to UKF, SU or USF.