Spectre

The Spectre is a multi-troop, armored transport. It is a medium sized vehicle, but maintains the high maneuverability most Covenant vehicles are renowned for. While it's slower than the Ghost, but faster than the Wraith, it can easily move while in confined spaces such as a tight box canyon. It is not prone to flipping, unlike its counterpart, and this makes it good for assaults. The Spectre's main weakness is that its occupants are quite exposed. The rear-mounted Plasma Cannon is very dangerous and can rapidly deplete an enemy's shield, and has a 360 degree firing arc. It has the capacity to hold two passengers besides a gunner and a driver.

Operation
The Spectre, like many other Covenant vehicles, has the ability to rapidly increase its speed with the aid of a booster. It can do this at the cost of great maneuverability. When boosting, this vehicle is particularly indicated for splattering oncoming infantry; also the main cannon remains operational when boosting. Good pilots are capable of using the 'A' button to lift the Spectre's nose to improve it's turning ability, like Ghosts. It offers two seating positions for passengers and thus allows them to add to the vehicle's firepower with their own weaponry. However, these seats are completely exposed and as such the passengers are very vulnerable to small arms fire and splash damage from nearby explosions. A protective metal carapace shields the driver’s seat. It leaves the drivers head exposed, however, and as a result leaves the driver prone to being sniped. The Spectre is much larger than the Ghost and thus heavier, and as a result it flips less often as a result of Grenades and other explosions. It provides a stable, mobile gun platform for heavy anti-infantry fire and a method of delivering troops into the heart of a battle.

Pictures
http://images4.wikia.nocookie.net/halo/images/thumb/8/87/Spectre.jpg/320px-Spectre.jpg