Class-2 directed energy cannon

Twin Plasma Cannons are standard weapons mounted on Covenant vehicles, like the Ghost, Banshee or the Seraph.

Summary
The Twin Plasma Cannons are directed energy weapons capable of firing automatic bursts of superheated plasma (in the 100-250 kW range). It is a very powerful against energy shields, but they aren't very effective against flesh and bone.

Its major advantage is its rapid rate of fire: 450 to 600 projectiles per minute, making this powerful against light vehicles and infantry, but not so good against tanks.

It uses energy from the power core of the vehicle where it is mounted and, when it uses the boost, it cannot fire.

In addition, the bolts have a stun effect, allowing it to destroy "stronger" weapons, such as tanks, as the tanks cannot turn fast enough to face the attacker. This, paired with the Ghost's evasive prowess, makes it a common manouvre against all vehicles (including other Ghosts)

Strategies

 * You will need to lead targets, because the bolts travel at a relative slow speed.
 * Also, you will need a lot of space to maneuver your vehicle, because you must turn the whole vehicle to aim, as they are mounted on it.

Trivia

 * When you are hit by a plasma bolt fired from this weapon, you run slower.
 * While boosting, you cannot fire the Plasma Cannons.
 * In Halo: Combat Evolved, the Twin Plasma Cannons fired simultaneously, while in Halo 2 and Halo 3, they fire one after the other.
 * The bolts look like bigger versions of the Plasma rifle bolts, albeit much stronger.