I guess it’s to late for that 
Welcome to the average thread on enlisted.
Jokes aside,
As a FG42 user, I would like to’ somewhat agree, but to a certain degree.
You are not solving the “problem”. Which it’s limiting the gun in the first place. Yes, you are limiting the usage of the gun, but the gun it self remains.
I don’t know how many German players plays with the fg.
I tend to overlook my teammates. Like, I don’t get paid for watch them
, but, as a somewhat of a “ experienced German player “ that comes from other noticable games where aim is somewhat required ( like, csgo, rainbow six, valorant and yada yada yada ), ( I know, weird flex, and I’m sorry because I’m not really the type of “ show off “ ) giving the single fire to the fg it’s actually better than the automatic fire.
The fg 42 got the recoil increased for automatic fire.
So making it single fire, it’s actually more of a bonus, because it teaches the players to engage with single fire and it’s just enough to kill anyone with just two bullets.
Lastly, I’m capable ( and I think everyone is ) to “ recreate “ the automatic fire in just single fire because there is little delays betwe each single fire. Making it almost ideal for close quarter.
But than, what about the FG42 II? Weather it’s stricted for the snipers, it’s somewhat better than the FG42 it self…
Unfortunately, I’m afraid what you suggested it’s not a solution. And therefore, ( I think ) it’s necessary that the gun should be unbuffed, and strictly limited to machinegunners.
But we’ll see what the others thinks ( which it’s more obvious at this point. )
Cheers.