A casting call for Call of Duty-related "voice over/motion capture" work for an Activision "video game" describing character Frank Barnes as being part of an elite Vietnam unit has been uncovered by VG247, seemingly confirming long running rumors that the next installment in the military shooter series will be set during the Vietnam War. Whatever the setting, the next installment in the series is under development at Treyarch, and is expected for release sometime this year.