UMG- 40. A Smith and Wesson .40 round yet does the same damage as all 9mm SMGs?

Please make this weapon relevant and a viable, competitive option. DICE did the same thing with the UMP40 in BF4 and it was as puzzling a decision and the weapon is/was as and as useless in BF4 as it is in BF6. 

Sure, it’s usable.  But in most head to head fights vs someone as proficient as you are, the UMP 40 will lose to more competitive weapons.