Amphibious Assault is a mission in Grand Theft Auto: San Andreas given to protagonist Carl Johnson by San Fierro Triads leader Wu Zi Mu from his apartment in the Chinatown district of San Fierro, San Andreas. Note: This mission can only be accessed from 20:00 to 6:00 in-game, as well as if you have more than 5% in Lung Capacity. Woozie tells Carl he can't swim. He easily panics just thinking about the water. Because of this, he won't be able to do something he's been planning: swim to a Da Nang Boys-owned ship out at San Fierro Bay and plant a bug in it. So instead, he wants Carl to do this. CJ first disagrees with the idea, narrating a humorous story he was involved in back in his childhood, making him somewhat afraid as well. However, once Woozie admits that he's blind, and would not be able to use his other senses in the water, Carl agrees to do the task, feeling some sympathy for Woozie.