Undoubtedly yes. Not only would you overwhelm them offensively, but many Romans would immediately surrender or defect to your side (in coli speak, Roman c00ns

) after seeing a few displays of your power.
Edit: Wait, you said coli brehs...that throws a monkey wrench in the situation cause they probably don't have tactical experience, but even then it probably wouldn't be competitive. The technology gap is too wide. And if the brehs were smart they would just make roman defectors fight a proxy war against other Romans. After showing your power you wouldn't have to lift a finger and could stay out of the fight almost entirely.