Battleship

Name: Covenant Battleship
Craft: Covenant Empire Battleship
Type: Battleship
Scale: capital
Length: 2,000 meters
Skill: capital ship pilot
Crew: 10,500; skeleton: 630/+10
Passengers: 31,500
Cargo Capacity: 52,500 metric tons
Consumables: 10 years
Slip Space Drive: x13.69
Nav Computer: yes
Maneuverability: 2D
Space: 7
Atmosphere: 350; 1,000kmh
Hull: 11D+2
Shields: 12D
Sensors

Passive: 200/1D+2
Scan: 400/2D+2
Search: 600/3D+2
Focus: 20/4D+2

Weapons

12 Energy Projectors

Fire Arc: 6 down, 6 forward
Crew: 1
Scale: capital
Skill: capital ship gunnery
Fire Control: 3D
Space Range: 3-45/105/225
Atmosphere Range: 1-90/210/450km
Ammo: energy based
Rate of fire: 5
Damage: 15D

170 Plasma Torpedo Cannons

Fire Arc: turrets: 50 forward, 60 port, 60 starboard
Crew: 1
Scale: capital
Skill: capital ship gunnery
Fire Control: 5D
Space Range: 2-12/30/60
Atmosphere Range: 4-24/60/120km
Ammo: energy based
Rate of fire: 3
Damage: 9D

350 Pulse Lasers

Fire Arc: turrets: 110 forward, 120 port, 120 starboard
Crew: 1
Scale: capital
Skill: capital ship gunnery
Fire Control: 3D
Space Range: 1-3/12/25
Atmosphere Range: 2-6/24/50km
Ammo: energy based
Rate of fire: 15
Damage: 5D

The Covenant battleship is a heavy capital warship classification within the Covenant Navy.

They are exceptional among Covenant vessels in that they possess a total of 12 energy projectors, making them one of the best-armed ships within the Covenant fleet. Their massive firepower allows them to decimate entire UNSC fleets from long range, and makes them ideal for defending key locations and ships. Their hulls have been described as having five of the bulbous sections characteristic of Covenant vessels.

There were several battleships present in the Fall of Reach. In addition, there were multiple battleships in the fleet gathered to the Unyielding Hierophant.

Source:
thedemonapostle
Halo Wiki