That´s why I wrote about the "2CP" mark on which the 120mm mortar appears. Getting a squad wiped around the 7-10 minute mark causes significantly more trouble than in the lategame, where unvetted infantry is thrown away to get VPs.
I believe only ost doesn't have tools that would squadwipe easily at that time.
Its not really just 120mm problem.
OKW have flak HT that can melt infantry in a seconds, pay less attention for a moment and you have 1 less squad. Sturms on the retreat path also can finish off retreating squad effortlessly.
USF can more or less successfully chase with M20, M15(less advised) or greyhound.
Soviets have M3s with flamers, demos and 120mm.
120mm have the range advantage here, but its also RNG dependent.