Concept art for Sledgehammers cancelled third-person Vietnam-era Call of Duty spin-off title have been posted online.
The images come from the portfolio of Eddie Del Rio, who worked on the title and show soldiers escaping an exploding plane, a large village area, and a soldier that looks like he's about to be decapitated.
Sledgehammer was founded by Glen Schofield and Michael Condrey, who previously oversaw the Dead Space series at EA's Visceral Games, and joined Activision in 2009. The studio worked on a third-person Call of Duty game for "at least six to eight months", according to Schofield, but then moved on to assist Infinity Ward on Call of Duty: Modern Warfare 3.
The cancelled project took place during the Vietnam War, Schofield explained: "We had the underground tunnels. We were definitely getting some Dead Space moments. I don't mean that from sci-fi, I mean that was a war that was scary for the [American soldiers].
"They didn't know if in the jungle there was a booby trap, or what was in those tunnels. And there were thousands of miles of tunnel underground. It was a hidden war, right? Everybody thought the war was in Vietnam, but it was in Cambodia and Laos. So we were telling a cool story.
"We found out as we were researching it as well, all around the world it's actually known as America's war. Not Vietnam's. We were the only ones that called it the Vietnam War. It's kind of unpopular. And we didn't really understand the marketing aspect of that."
Speaking to CVG in 2011, Schofield said Call of Duty: Vietnam may have been taken in a different direction, if development had continued.
"[It was] probably set at a time that might have niched it too much. I bet that if we had kept going, within a month or two I probably would have switched the time period, but kept the gameplay".
Sledgehammer is now working on Call of Duty: Advanced Warfare.
The shooter is said to be set in a plausible future, specifically the year 2054, and stars Kevin Spacey as main antagonist Jonathan Irons. The Call of Duty Advanced Warfare release date is set for November 4 on Xbox 360, Xbox One, PS3, PS4 and PC.