Agent Twenty-Eight

Agent Twenty-Eight was Spartan IV serving under the ONI branch, Monolith. She was a product of the Hyper-Advanced Cloning Program; the same as Agent Twenty-Seven.

Summary
Agent Twenty-Eight, referred to as just Twenty-Eight by Migs, served in Monolith as an asset created by the HACP. Little is known about Twenty-Eights status or operations, however, on October 23rd, 2555 she was tasked with eliminating Agent Twenty-Seven after the events of Twenty-Sevens mission led to the leaking of secret information. Twenty-Eight took her counterpart by surprise, holding her at gunpoint from behind.

Twenty-Seven retaliated, triggering a fight between the two. The details of the fight remain a mystery, but Twenty-Eight was ultimately killed by her clone counterpart during the confrontation.

Differences From Twenty-Seven
One of the key elements of the HACP, was the ability to modify, replicate and implant memories into the developing clone. The range and effectiveness of this process appears to have wide capability. Twenty-Seven mentions that her knowledge of Monolith was effectively erased despite her active status within it. In addition, she never found reason to question her mission directives. That in mind, it can be assumed Twenty-Eight sheared a similar level of memory modification. Twenty-Eight however displayed a more direct intent to kill compared to Twenty-Seven, even in spite of the strange circumstances of her assignment.