Juarez commands the final platform, expends his sniper rounds against armor, then is shot three times leading the rush toward Ashford's bridge.
Juarez and Cass reach the command platform after Bull destroys one armored loyalist and the elevator becomes a barrier. He reports Bull's sacrifice as a second hostile neutralization and refuses Corin's demand to recover the body because moving it would weaken their only defense. Holden backs the tactical judgment and then gives Juarez command of the position.
Hanging from the ceiling like an armed bat, Juarez uses the last magazine of his scoped rifle against the two remaining suits while calling ranges for Cass. He scores no confirmed hit before exhausting ammunition. Naomi's elevator collision eliminates the pursuit instead. Juarez acknowledges the engineer's solution with genuine surrender to a skill beyond his own.
Inside the opened command airlock, Juarez designs a maximum-aggression rush and takes point. He rounds the corner into unexpectedly concentrated fire and is hit in hip, upper arm, and foot. None of the wounds is immediately lethal, but together they threaten rapid blood loss. Holden and Cass pull him out; Naomi begins emergency treatment. His leadership carries the team to the final corner even though he cannot carry it through.
Juarez is an adult Martian marine in an environment suit, carrying a long scoped rifle until it runs dry. His features are otherwise undescribed; gunshots wound his hip, upper arm, and foot.
Juarez is the final approach's tactical commander and wounded point man, giving the assault professional structure until command's kill zone removes him.