The studio was "unable, or unwilling" to let Black explore his vision for Bodycount, and says some of the marketing was not "doing justice for the game".
"There have been some quite odd and silly rumours," stated Stuart Black.
"At the end of the day these things are mundane. I've never spoken about it and don't have a lot to say. An agreement was broken. No one really wanted to fix it. I decided to move on. The rest seems to be self-generating noise." Black is now at City Interactive.
"My decision to leave Codemasters and Bodycount was the hardest choice of my career. However, it was clear that Codemasters were unable, or unwilling, to provide the support needed to realize the vision I had for Bodycount."
"Some of the marketing initiatives and trailers were not, in my opinion, doing justice for the game." Bodycount is a shooter for Xbox 360 and PS3. Right now Black is working for the Polish-based City Interactive who has set up shop in the UK.
"But these things work themselves out," said the optimistic games designer.
"If that hadn't happened, I wouldn't have met the guys at City, had the opportunity to visit the team in beautiful Rzeszow in Poland, and be blown away by their enthusiasm and the quality of their work, or the chance to use CryEngine 3, which is awesome."
"What matters to me, to all of us here, is creating a really great game." Black and his City team are currently developing a new shooter set in WWII, but they want to "invoke the spirit of films like The Dirty Dozen, Where Eagles Dare, The Guns of Navarone, and a bit of Inglourious Basterds." That want more "rock and roll" in their WWII visit.