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They work their way up the flooded streets, until a bus ridden by the flood is about to crush them.
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He is first seen along the rest of the team pinned down in a grocery store, until he fixes a malfunctioning CLAW by kicking it. Harper reappears in " Fallen Angel" as the JSOC dug in to investigate and record DeFalco's and Menendez' meeting. He is shot in the neck, and the team returns fire and goes back to the lab entrance to see Briggs, who takes the celerium device. He also tells of Menendez's assumed superweapon called "Karma". Army infrastructure useless due to its capabilities. He introduces them to the quantum entanglement device, a chip that would make the U.S. After making their way inside the laboratories, they come across Erik Breighner, a scientist hired to inspect the properties of celerium. The team glides down the mountain paths to the base, and break their stealth and engage the Cuban enemies there.
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The two grapple each other from the cliffs to land, which is when Salazar and Crosby join them. He later appears in " Celerium", where he and Section recon an information base in Myanmar from afar. Such as Alex shooting Menendez in the face and Woods killing his sister Josefina, prompting Raul himself to seek vengeance. Harper and Section then listened to Woods telling the story of his adventures with Section's father, Alex Mason, in 1986, and how Menendez came to be the man he is today. Harper first appeared in the prologue, where he, along with his teammate David "Section" Mason and several other JSOC operatives, arrived at The Vault to investigate the retired Frank Woods and his connections to Raul Menendez.
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