The Bren was to accurete for its job an LMGs job is not to hit one man with its burst but to supresse the enamy and perhaps hit 1 or 2 with its burst. This is where the Bren failed as a LMG if a Section comes into veiw and you shot at them with a Bren chances are you will it only the person you are aiming at with a Mg34/42 you probably will hit the 2-3 people as the bullets naturaly spread out a bit like shot from a shotgun.
I repeat: No gun is too accurate!
An inaccurate gun might as well spread its salvo to the right of the target than all over it, where as an accurate gun just needs a little adjustment and it will spread its salvo anywhere you like it.
Anyway the MG42 was quite accurate and from what I know as accurate as the Bren. But with double the rate of fire the MG42 of course has an advantage in suppressing a target.
And BTW if suppression was the main task the British Army would have chosen the watercooled Vickers medium MG for the job. A handful of Vickers could keep a target under continous fire for eternity, as long as water, spare barrels and ammo were available. Sometimes they were firing at elevation at targets behind a crest. For this they were the perfect weapon system due to the water cooled barrel, but due to the heavy weight completely unsuitable as squad/platoon support weapon.
The LMG had to rely on much shorter bursts taking under fire the kind of targets a squad/section could handle. That was the case of both the Brengun and the MG34/42 on bipod (squad level). The MG34/42 in a few seconds and with a tripod could be transformed into a medium MG and the MG34/42 thus gave the German commander a great versatility.
Regards
Steffen Redbeard