Chained Lockbox

Collect Chained Lockboxes to unlock ??? Chained Lockbox was included with Special Operation 39. Obtaining all the comic book covers unlocks ???. They are used to recruit ??? by collecting Comic Book Covers and completing the Chained Collection.
 * "Don't see inside of this box or the Ghost can take you."


 * Lockboxes can be purchased in the store at a cost of.
 * Lockboxes can be sold in the store at a price of.
 * Lockboxes can be opened individually at a 7% chance of obtaining a Comic Book Cover. 10 lockboxes can be opened together for a 100% chance of obtaining a comic book cover.

Scarlet Lockboxes can be obtained by:
 * Completed SO39 Task 5. Rewards 10 Lockboxes.
 * Taking SO39 Group Boss Zarathos 5% of his maximum Health. Rewards 1 Lockbox per 5% of Health.
 * Defeated the player's own Group Boss. Rewards 10 Lockboxes.
 * Defeated the allies' Group Bosses. Chance to reward (?) Lockboxes per Group Boss defeated.
 * Rewards 1 Lockbox for helping ally against the Group Boss. Appears in SO mission maps.