Ive been thinking a bit and however tommy gun uses the cheapest ammo, even the cheapest should make more dmg than lvl 1 kick. I mean, I understand the burst to be 3-20, but single shot 3-20? Ok, if it depended on the range and the targets close to the maximum range of tommy gun would get dmg closer to 3 than to 20 I agree but it doesnt work like that. Its a two handed weapon and yet you can cause raw 3 dmg with a single shot to enemy being close to you.
Burst: 3-20 fine
Single shot: 3-20 not really :/, it should be 7-20 at least. I mean, you can kill a person IRL with a fake weapon and this is a real weapon, 2 handed with real ammo and greater dmg than mauser of 10mm pistol