How did Pompey defeat the revolt led by Marcus Lepidus?

After initially supporting Marcus Lepidus for the consulship of 78 BCE, Pompey the Great joined the forces of law and order when Lepidus attempted a revolution against the Sullan constitution.1

Following Lepidus's failed march on Rome—where he was repelled at the Milvian Bridge by the other consul, Quintus Lutatius Catulus—Pompey took military action to suppress the uprising. He drove Lepidus into the port of Cosa in Etruria, forcing him to flee to Sardinia, where Lepidus eventually died after further defeats by the propraetor Gaius Valerius Triarius.2