Cont...

Engineer:
MP7:
Magazine Capacity: 20
Magazines: 3
Rate of Fire: 600
Damage: 24
Fire Modes: Full Auto / Semi Auto
Accuracy: Low / Medium
Min Deviation: 0.37
Deviation Standing/Crouching/Prone: 1.3 / 1.0 / 0.9
Deviation Added per Shot: 2.5
Deviation Mod when Zoomed: 0.75
Recoil: 0.4 - 0.6
Recoil Mod when Zoomed: 0.7

Jackhammer MK3A1:
Clip Size: 7
Magazines: 6
Damage: 15x8
Accuracy: Low
Fire Modes: Full Automatic
Accuracy: Low
Min Deviation: 1.5
Deviation Standing/Crouching/Prone: -/-/-
Deviation Added per Shot: 0.3(3)
Deviation Mod when Zoomed: 0.9
Recoil: 4
Recoil Mod when Zoomed: 1

Bottom Line: Well these guns are vastly different since one is an auto shotgun and one is a SMG. The 20 round clip on the MP7 is somewhat of an annoyance. I would probably still take the MP7 over the Jackhammer for those medium encounters.