Private Chao

Private Chao is a N.O.V.A. marine who meets Kal Wardin in San Francisco during a Volterite attack which sets in motion the events of N.O.V.A. 3. He is in a squad with two other marines also - Sergeant Becker, the leader, and Wilcox. The team aids Kal in neutralizing corrupted marines.

When the squad splits up, Kal is with Chao neutralizing the first tower while Wilcox is with Sergeant Becker neutralizing the second. They meet up afterwards and reach the base where Yelena is located. This is where Chao is last seen.

Trivia

 * Chao is referred to as "Sergeant Chao" when Kal first meets Becker, his commanding officer. Despite this, Becker is clearly referred to as "the N.O.V.A. Sergeant" in the objective, not Chao, and Kal later refers to Chao as "Private". The earlier rank is most likely meant by Becker as a joke, or possibly an accidental inconsitency. Most likely Chao is in fact a Private.