From Halopedia, the Halo wiki
Myriad were a Mgalekgolo bond brother pair in service of the Banished. They were present for the Banished occupation of Installation 07 in 2560 where they served as part of the Fifth Lance in the First Combat Element within the Hordeworms of Svir. During this conflict, Myriad were killed by John-117.
Myriad, like Colony—another bond brother pair serving the Banished—and the Swarmlords serving under Ke 'Nzahz, represented a peculiar behavioral evolution in Mgalekgolo, trending from a more subservient hivemind to a more individualized identity and intelligence.
Myriad participated in the Installation 07 conflict in 2560 as part of the Fifth Lance in the First Combat Element in the Hordeworms of Svir. During this time, the pair came under the attention of the UNSC for previously having been responsible for the deaths of two full squads of Spartan-IVs.. This led to them being identified as high-value targets by the Weapon, who passed their information on to Spartan-II John-117. After tracking them down, the Spartan killed both Myriad and the Banished forces accompanying them.
During the Installation 07 conflict, Myriad carried modified Cindershots called Backdraft Cindershots. However, it is unknown how the Mgalekgolo pair made use of these weapons in combat as they did not field them in their battle with John-117.
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