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24 hours before the fall of baghdad , 24 hours before his fellow marines engaged in a fierce firefight at baghdad university , teeterman ' s orders had him just south of the capital taking out iraqi resistance a top a warehouse roof .
 ( attack: firefight,  marines: attacker, baghdad university: place) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: declare bankruptcy, transfer ownership, transfer money, marry, transport, die, phone write, arrest jail, convict, sentence, sue, end organization, start organization, end position, start position, meet, elect, attack, injure, born, fine, release parole, charge indict, extradite, trial hearing, demonstrate, divorce, nominate, appeal, pardon, execute, acquit, merge organization, Arguments type: beneficiary, prosecutor, plaintiff, seller, victim, buyer, agent, destination, artifact, organization, recipient, person, place, origin, target, giver, adjudicator, attacker, vehicle, defendant, entity, instrument. 
Text: {0} 
Answer:
 ( attack: firefight,  marines: attacker, baghdad university: place) 