Jackhammer

"The Jackhammer is a highly destructive concept shotgun. Unlike the slow firing speed of most shotguns, the Jackhammer's gas-powered reload system allows it to fire rounds at high speed, annihilating anything in it's path."

- The Arsenal

Overview
Pancor Corperation Jackhammer is a shotgun added by Combat Arms during a Patch on 20th Oct 2011.

Jackhammer's damage and RoF is one of the highest compared to other shotguns (except the double barrel series and NX(R)SG). The crosshair of the Jackhammer is quite small for a shotgun which means the chances of missing your enemy is slightly lower. Jackhammer has its own disadvantage as well, the portability and the ability of NOT being able to hold any modifications.

Tips to use gun:

In Quarantine situation: Jackhammer reload by clip instead of bullet by bullet, this means you cannot fire when reloading so reload whenever the chance is given. Due to the Portability, don't run with this gun, switch to a lighter weapon(SMG or pistol). Take advantage of the Jackhammer's high push back penalty so use this gun to shoot at the infected instead of a SMG.

In Elimination situation: Jackhammer reload by clip instead of bullet by bullet, this means you cannot fire when reloading so reload whenever the chance is given. Engage the enemy in CQC around 1-10metres because after a range 10metres and more, the damage starts to decrease.