Phoenix-class colonial support vessel

Phoenix-Class Colony Ship The Phoenix-class Colony Ship  is a ship classification within the United Nations Space Command. The Phoenix-class starship, among others, are often modified into warships such as the, which is a modified Phoenix converted for Wartime-use towards the newly encountered Covenant alien alliance. It is speculated that the refitted ships, based on the Halo Wars trailer and demo, carry vehicles, troops, and supplies. It also carries the resources necessary to build bases. It will be the main ship in Halo Wars.

The UNSC Skidbladnir was the Phoenix-class Colony Ship which colonized Harvest.

Specs
The Phoenix-class may have up to 25 hangars and is 4.7km long, making it one of the largest UNSC ships in the organization's naval history.

Though originally designed for peaceful colonization purposes, many of these ships were refitted with weapons to fight in the Human-Covenant War.

Trivia

 * The name Phoenix is likely a nod to Bungie's canceled game of the same name.