Marco Bott is a member of the 104th Trainees Squad, and graduated as the 7th ranked trainee in his class. He was assigned to fight the Titans after the breach of Wall Rose, and given command of his own squad.
Marco is an idealistic person, valuing the good of the group above his own interests as well as understanding and coping with his own shortcomings and limitations. The others respected him greatly, and considered him to be a natural leader suited to his dreams of joining the Military Police. Unlike those who join the Military Police for safety and privileges, his reasons of joining it were genuinely faithful. He was shown to be an excellent judge of others, recognizing Jean's potential as a leader and encouraging him to believe in himself. He was also shown to have a talent for preserving order among the other trainees, whether resolving arguments or keeping them calm during battle.
Marco is first introduced during the initiation of new recruits, and is intimidated by their instructor after expressing his desire to join the Military Police. He later attempts to maintain order when the recruits question Eren about the attack on Wall Maria, hiding the others when their questions become too upsetting. During his time as a trainee, he befriends Jean Kirschtein and the two were often seen together. He seems to have been one of the only people to recognize Jean's potential, encouraging him to embrace his natural abilities as a leader.
After the Colossal Titan attacked Trost, Marco was assigned command of the 19th Trainee Squad and ordered to support the vanguard forces. He was eventually among the trainees stranded when the retreat order was given, without enough gas to scale the Wall and escape Trost. When Mikasa and Jean rally the others into charging headquarters, which had become surrounded by Titans, Marco is quick to join them. Inside the station, he became vital in Armin's plan to reclaim the overun supply room and leads the main group. Armed with rifles, the recruits acted as bait and lure the seven Titans occupying the room into position. Marco managed to maintain order in the group, keeping everyone calm until they could fire and blind the attacking Titans.
He is later seen among the regrouped forces, attempting to keep order when people like Dazz give into their fear. Marco did his best to comfort them and keep morale high, even when they were ordered to return to Trost. He joined the other recruits up on the Wall, acting as bait to distract the Titans from the main operation involving Eren Yeager. Later, he was among the recruits that head into the city to battle the Titans. There, he helped to rescue Jean when his gear malfunctioned and would eventually join the others in battling the Titans while Eren sealed the hole in Wall Rose.
Note: Marco Bott is the official English translation by Kodansha.
