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 * An insurrection takes place on Mamore.
 * The Battle of New Constantinople is fought.
 * Actions take place in the Bonanza Asteroid Belt.
 * Operation: PROMETHEUS. The Spartan-III Alpha Company wipes out a Covenant shipyard, but all of the Spartans were killed in the process.
 * Beta Company of the Spartan-III's is authorized.
 * The Brute Spiker (Type-25 Carbine) appears for the first time.
 * The 2nd class of Spartan-IIs are conscripted. One of them is Yasmine Zaman.