Unus Offa, Unus Nex,
come on dude, lets be frank here, someone in TWI just doesnt like Ruskies... You want to tell me that the 200 gram difference between a fully loaded MP40 and PPSh, is why my recoil so much higher?
PPSh has a longer barrel, which helps with dealing with recoil + it was designed for less recoil (solid tube of mp40 vs. muzzle break across the barrel PPSh)
Did you see my previous video of the
PPSH-41 in Iraq - YouTube shooting drum PPSh? He unloads the drum (kneeling) with barrel NOT MOVING.
Muzzle brake across the barrel ?? It's a metal sleeve with holes for venting, like on the MG42, not a muzzle brake. The only thing on the PPSh41 that resembles a muzzle brake is the small space between the end of the barrel itself and the end of the sleeve. It doesn't work as-well as a straight out muzzle brake though, so don't think it does, it helps, but not a lot.
The main reason that the PPSh41 kicks more than an MP40 is because of the very high cyclic rate, and the way you're forced to hold it - there is no comfortable front grip on the PPSh, and rifle buttstock is less than ideal for control during automatic fire as compared to a pistol grip.
Also don't forget to take into account the stance of the guy in the vid you posted, he's in a crouching position.
Anyway look at these, same guy, different weapons:
ppsh41 - YouTube
MP40 - YouTube
Now admittedly that guy isn't the best at controlling the recoil of the guns he fires (I've fired the very same weapons in real life and know it can be done better) but, the difference between how he handles the recoil of the PPSh & MP40 in those two vids is telling of the difference between the two weapons which I can attest to.
The MP40 can even be comfortably fired with the stock folded. By comparison I think that shooting a PPSh full auto without a buttstock would be hard to control, simply because of how fast it fires.
As for your comment that TWI doesn't like the Ruskies, that's just nonesense, atleast the Ruskies get accurately outfitted weapons for the most part, where'as the Germans get incorrectly modelled reticles, misaligned scopes, missing scope models, ZF41's on weapons that have zero use for them etc etc... By comparison the Soviets get 4x to 6x scoped SVTs , modelled scope upgrade for the Mosin and properly modelled reticles.
So don't give me some crap about TWI prefering the Axis side, cause they most certainly do not! They're neutral about each side, that I am sure of, and have tried abit too hard to perfectly balance the loadouts of each side ingame.