8 MJ LRG Rail Gun



The 8 MJ LRG Rail Gun was an artillery weapon used on the SP42 Cobra and as a weapon attachment upgrade to a standard UNSC prefabricated base turret. It was primarily designed for use against enemy fortifications, but excelled at taking down vehicles as well. When used on the Base Turret, rail guns add a bonus antivehicle attack to the turret and possess the ability to deliver a super-dense 105mm slug at high speeds to disable vehicles. When mounted on Cobras, it was usually only fired when in a secure, locked-down position. It could deliver devastating damage at a very long range thanks to its large explosive shell and was able to destroy hostile vehicles with ease.

Trivia

 * "8 MJ" may refer to 8 Mega-Joules, or the energy required to operate the weapon attachment, but this is just pure speculation.
 * Much like how the Base Turret's M202 XP Machine Gun may be detached at will, the Rail Cannons most likely can act as stand-alone weapon emplacements or be attached to other vehicles.
 * Other than the 16 MJ LRG Rail Gun, the 8 MJ is the only known rail gun in UNSC's arsenal. Other common magnetic acceleration weapons use a different principle of operation and are referred to as a coilgun or Gauss gun.