Halcyon-class light cruiser

Summary
The UNSC Halcyon-class cruisers were designed by Dr. Robert McLees in 2510, and served only a short while because their unique hull design was considered too costly and risky to use, as well as being too slow. They were subsequently replaced by the Marathon-Class cruisers. Their only noteworthy design feature was a series of cross bracings and honeycombs; however, these made the ships virtually indestructible. They can be operational after sustaining breaches to all compartments and losing 90% of their armor.

Some, however, were later pulled from long term storage after the Covenant War broke out. According to Covenant computers, the Halcyon-class cruiser is listed as a 'Human attack ship type C-11'.

Known Ships

 * UNSC Pillar of Autumn
 * UNSC Dawn Under Heaven
 * UNSC Republic