Khan's Crew
Khan Noonien Singh
Officer shards can be earned by completing the following missions: A Reliable Source, Crossing A Line, Shall We Begin?, The Coming Darkness, and The Other Side. Additionally, shards can be gained through the Augment Faction Store and the Swarm Sunday event (for Ops 28+).

Joachim
Officer shards can be earned through the Ultra Officer Chest, the Augment Faction Store, and, occasionally, through the Rotational Ultra Chests.

Marla McGivers
Officer shards can be earned by completing the mission Lessons of the Past. Additional shards can be gained through the Ultra Officer Chest, the Augment Faction Store, and, occasionally, through the Rotational Ultra Chests.

Joaquin
Officer shards can be earned by completing the following missions: A Warrior's Mind, Botany Bay Part 1, Botany Bay Part 2, Botany Bay Part 3, Botany Bay Part 4, Botany Bay Part 5, Botany Bay Part 6, Botany Bay Part 7, Botany Bay Part 8, and Retrofit. Additional shards can be gained through the Augment Faction Store.

Otto
Officer shards can be earned by completing the following missions: Augments Exodus and Augments Exodus Part 3. Additional shards can be gained through the Augment Faction Store.

Kati
Officer shards can be earned by completing the mission Augments Exodus Part 3. Additional shards can be gained through the Augment Faction Store.

Navi
Officer shards can be earned through the Ultra Officer Chest, the Augment Faction Store, and, occasionally, through the Rotational Ultra Chests.

Pan
Officer shards can be earned through the Ultra Officer Chest, the Augment Faction Store, and, occasionally, through the Rotational Ultra Chests.

Rima
Officer shards can be earned through the Ultra Officer Chest, the Augment Faction Store, and, occasionally, through the Rotational Ultra Chests.