The rifling attachment increases your range. In support of those tactics use the steady aim PPSH-41 attachement which make firing from the hip more accurate. And, as you will be behind enemy lines, it will be important that you can react quickly to seeing an enemy. To best exploit that competitive edge it is important that you can get to where you want to go stealthily and quickly. The PPSH-41 has a decent fire rate and damage and can compete with assault rifles at medium range and is stronger than assault rifles at close range. The PPSH-41 submachine gun in Call of Duty: WW2 is a good all-around submachine gun.