This poster doesn't know what a nearby multiplier is
maxim:
Suppression
Suppression far:
0.0175
Suppression radius:
10.0
Nerby multiplier:
0.4
Suppression
Suppression far:
0.06
Suppression radius:
10.0
Nerby multiplier:
0.8
Suppression
Suppression far:
0.012
Suppression radius:
11.5
Nerby multiplier:
0.8
Can we spot the difference?
Suppression is multiplied by the ROF which the Maxim is faster. They have right around the same suppression with the 50 being slightly better. But in practice they both will suppress on the first burst. Reload, ROF, Targetting all comes into play with more than one squad.
That is the Area the 50 sucks at. It has a mediocre ROF reload and terrible targetting. If you use a Maxim it will work better at the Job of being an MG for less and arrives earlier. Also the MG42 of course.
Nearby multiplier is how much of a bonus it gets to suppress units that are close. But bascially you need to figure out the ROF to put your suppression values against. The Suppression value does not stand on its own.