The MP-40 submachine gun in Call of Duty: WW2 is a powerful, versatile submachine gun. The MP-40 is competitive with rifles at medium range and can keep up with many of the other submachine guns at close range. It is best used aggressively by being in places where enemies don’t expect you to be. You will need to maneuver the map carefully to surprise enemies and be silent about what you are doing. The best attachments for the MP-40 help you whilst aiming down the sights. The lens sight gives you a clear view of enemies and helps you be more competitive with assault rifles at medium range. The quickdraw MP-40 attachment helps you aim down the sights of the MP-40 faster giving you an edge when you surprise an enemy. The best division for the MP-40 is airborne which lets you move faster so that you can surprise enemies in unexpected places. It also grants the silencer attachment which helps to keep your position hidden even whilst killing enemies left and right. The best training for the MP-40 is lookout which highlights enemies from further away.

Use your favorite secondary for when you run out of ammo and use the mk 2 fragmentation grenade to clear out tight areas where shotguns would have an advantage over you. Here is the complete best class setup for the MP-40..

As found on Youtube