Origin
Soldier is a former member of Hydra, who eventually was able to de-program himself. He quit and blacked out his tattoos, moving into a tenement building with his mom. Zodiac used the tenement building for one of his many tests against Moon Knight, turning Soldier into a pawn. After being rescued by Moon Knight, he pledged his loyalty to him and his Midnight Mission.
Creation
Soldier debuted in Moon Knight (2021) #2 by Jed MacKay and Alessandro Cappuccio.
Major Story Arcs
Midnight Mission
When Zodiac lured Moon Knight away from the Midnight Mission with his two fighter allies, Tigra and Rutherford Winner, Soldier was forced to defend the Midnight Mission. He put on a the Mr. Knight suit and went out into the street to fight Zodiac’s gang. Zodiac never gave him a chance. Zodiac shot him dead.
The Structure
When Zodiac shot through Reese and killed Soldier, enough DNA survived on the bullet to infect Soldier with Reese’s vampiric curse. This got the attention of Tutor, the vampire who had sired Reese and was running the vampire cult, The Structure. He believed that Soldier was the first of many, so he treated the Midnight Mission as a rival organization.
After Moon Knight did some investigating, they tracked The Structure to a convention center, where they were having a fancy meeting. Moon Knight intended to confront them, but he needed Soldier to use his domestic terrorism training. Soldier sabotaged the fire suppression system, forcing the sprinklers to go off in the main hall, for Moon Knight to consecrate into holy water.
The Last Days of Moon Knight
The Midnight Mission was targeted by a mysterious new Black Spectre, who was working with a number of Moon Knight’s old foes. One such villain was Sidney Sarnak, who had perfected a way of brainwashing people with sound. One test incident was when they caused a riot during a concert that Reese and Soldier were in attendance of. After interrogating one of the his goons, Moon Knight learned that Black Spectre planned on using this technology on the entire New York population. Moon Knight tracked the operation to a skyscraper in the city and formed a field team, with Soldier on the ground doing recon on The Mount before the rest of the team made there approach. Unfortunately, Black Spectre was ready for them and took down their airship, causing them to crash into the building.
With the Black Spectre’s goons focused on the crash higher up the building, Soldier had the opportunity to break in through the front door. In his new moon-themed military gear, he made his way through the building until he found Tigra. She had stepped on a land mine and was stuck. Thankfully, he had training in disarming such bombs. Once Tigra was freed, they reunited with Badr, but the trio couldn’t get to Moon Knight. With no other option, Moon Knight sacrificed himself to take out the weapon.
Per his last request, Reese took over the Mission for Moon Knight, with Soldier staying on as a team member.
Vengeance of Moon Knight
While trying to protect their part of New York, the Midnight Mission is attacked by a masked mystery man claiming to be the new Moon Knight. He had already attacked 8-Ball and was looking to target the rest for being too ineffectual or monstrous to carry on the legacy. He easily fought off the whole team, however, when he entered the Mission, the sentient building rejected him completely. This forced the new Moon Knight to give up on taking back the storefront but warned them to stay out of his way.
Unfortunately, this was only the beginning of the problem. This new Moon Knight went after masked criminals so aggressively, that those masked criminals started targeting the Midnight Mission, putting the community they protect in danger. They were forced to approach Lady Yulan and call in the favor they earned taking out The Structure. She led them to his daylight hiding spot where it was revealed he was The Shroud.