This side quest leads you in an investigation to find out the whereabouts of missing Chinese agent, Wan Yang, and use the Submarine Self-Destruct Codes in her possession to blow up the stranded Chinese submarine SSN-37-1A. FALLOUT WIKI INFO: fallout.wikia.com Point Lookout is the fourth Fallout 3 add-on, released on June 23, 2009 as downloadable content (DLC) for the Xbox 360 and Games for Windows Live. The PlayStation 3 version is to be released after the first three add-ons have been released …