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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 298 of the Spartans are killed.
 * Beta Company of the Spartan-III's is authorized.
 * The Brute Spiker (Type-25 Carbine) appears for the first time.