Lol..I went 60-5 on Vacant with Pump Shotgun it's the best shotgun there (not very many choices). You don't need grip trust me - if you have 3x frag use that instead. Put on Juggernaut to really make people mad ;). Martyrdom is a must, besides I know what you mean about not 1 shot kill -- they have juggernaut try to go around as much as possible and don't get yourself caught up in a medium range fight because you will lose.
Perfecsayian- I tend to use Stopping Power. It's been so long since I HAVEN'T I really don't remember how handles, how many shells does it usually take to drop someone from say about 15ft or so? --- Gamertag: RONIN Y0JIMBO