Exercise 24, #5:
The soldiers having been captured gave up their arms.
Me: Mīlitēs captī arma tradidērunt.
Them: Capti milites arma tradidere. (Sorry, no macrons in the answer key).
What is this? I'm fine with their order of Capti milites, but I have no idea what's up with arma tradidere. I'm treating the participle as just a modifier of the subject, soldiers, and I would expect to see a corresponding verb inflection, perfect indicative active 3rd plural. I'm not even sure what form their verb is in--the present infinitive would be tradere, right?