Ok.
(Some, if not all of the stuff is ripped from the Wiki.)
M6 Series Pistol
The M6 series weapons are recoil-operated and magazine-fed, and typically fire 12.7 x 40mm projectile ammunition, and despite the large caliber, oftentimes "exotic" ammunition is not utilized. They are also remarkably large and overpowered to an extent, appearing to be redolent of a cross between a pistol or a rifle in size. In addition to power, the M6 line of weaponry is designed to be rugged and reliable, and they remain operational after Slipspace transitions and high-g aerial maneuvers. However, the heavy weight limits its distribution amongst personnel, and the M6 weapons have a tendency to drop casings on the wielder's foot,[1] leading some UNSC personnel to favor the M7/Caseless Submachine Gun which operates on a caseless system.
John is easily able to used this pistol without having to worry about recoil and hot casings hitting his feet. The ammo it uses is 12.7 x 40mm (Semi-Armor Piercing,High Explosive) ammo.
BR85HB SR Battle Rifle
(Description on the poster.)---VVV
"The BR85HB Service Rifle is a gas-operated, magazine-fed, semi-automatic rifle optimized for three-round burst firing, and proven to be an extraordinarily versatile weapon at a wide variety of ranges in the hands of a capable marksman."
The BR85HB Service Rifle is a gas-operated, magazine-fed selective fire rifle optimized for three-round-burst firing, and proven to be extraordinarily effective against dissipative energy shielding on both exotic and domestic armor types. It has a magazine size of 36 rounds, and fires in three-round bursts, thus giving 12 bursts before depleting the magazine.
It uses 9.5x40mm (Semi-Armor Piercing,High Explosive) rounds.
Barret 50 Caliber Rifle
Self explanatory.
RPG
A weapon that shoots Rocket Propelled Grenades.
.950 JDJThis is a gun I wanted John to get in the future.
This is THE ULTIMATE armor piercing weapon!!!
I was thinking that it could be a militarized version of the gun, or even custom made.
John would be able to handle it, due to his weight and strength, and god help you if he melees you with it.:p
Punt GunA guy can dream, can't he?
The punt gun uses 2-gauge shells and is F*CKING HUGE!!!
John would be okay for the most part, but he would definitely be affected by the recoil.