Karakter, a design studio we've featured here before on Fine Art, were asked by Activision to do some promo work for Black Ops III. I like their posters here better than I liked the actual game. These images, done while the game was still in development, had to "anticipate the final look of each character, their gear and costumes, but also their characteristic attitudes".
You can see more of Karakter's work at their studio site.
Fine Art is a celebration of the work of video game artists, showcasing the best of both their professional and personal portfolios.