According to VG247, a Hollywood casting call for voice-over and motion capture work provides the most concrete evidence to date that Treyarch's Call of Duty 7 will take place in Vietnam. The casting call, originally posted on the 18th on casting site Showfax.com and since revised, provided details on the game's main characters and settings:
The call is for motion capture and VO work for what looks like four major characters from the game, namely Barnes, "a fiercely patriotic veteran of WW2… A solid leader, possessed with an excellent ability to assess and respond to any situation quickly and decisively"; Joseph Lewis, a "very physically fit" black man in his 20s; Jason Hudson, a white man in his 30s with "over 15 years of military experience, making him an excellent tactician and mission co-coordinator"; and Kristina Ivanova. a Russian-born martial arts expert and CIA operative who's "calm to the point of being cold and detached."
The casting call also described Frank Barnes as part of the Military Assistance Command, Vietnam Studies and Observations Group, a covert special operations unit that took part in the most significant campaigns of the Vietnam war.
Activision and Treyarch aren't commenting on CoD 7, but in the recent Activision Blizzard conference call, the company did confirm the game was scheduled to hit the shelves sometime during the 2010 holiday season.