Anvil-II air-to-surface missile (Earth-8573)

The ANVIL-II missile is an air-to-surface missile developed by Armat Battlefield Systems for the United Nations Space Command, where they are commonly used mounted in D77-TC Pelicans for the clearing of combat zones.

History
During the Battle of Chi Ceti IV, the SPARTAN-IIs John-117, Kelly-087, and Samuel-034 boarded the Unrelenting from the UNSC Commonwealth in an operation to destroy the ship from within with an ANVIL-II missile. Inside the ship, they battled against multiple sangheili and kig-yar, where Samuel's armor was damaged and therefore stopping him from returning to the Commonwealth. He then chose to stay behind and sacrifice himself by detonating an ANVIL-II missile, destroying the Unrelenting.