Dog the whole point of the 120mm is that it has a bigger AoE if you decrease the AoE it's literally just a slightly better mortar that costs more, is way less accurate, and doesn't get flares.
Alright, then 120`s must be nerfed in survivability. It isnt good, when im flanking it with PGrens, throwing grenade (btw PGrens grenade "are so op") and after all start shooting in CQC. Meanwhile 120 mortar dont give a f...k about all of this, just retreats. Really?
About accuracy - are u srsly? 120`s neednt it for one simple reason - AOE. Also we must bear in mind 4-5 men Axis squads.