Mp7

well for startes the MP7 you get at a very high rank which is level 25. You will notice when you buy the gun that it is very useful. 1 way its useful is that its cheap ammo and good accuracy. Don't let the damage fool you thats just what it says. The Gun could mow down groups of swarmers. Its a good gun to have when you are sometimes overwhelmed by swarmers. IT could also work on Butchers but takes a few seconds for them to die with it. I recommend buying this gun because you will later see you'll use it alot of times. BTW MP7 is the much more powerful version of the skorpion but with better damage and accuracy.