Singularity developer Raven Software's long-rumoured association with the Call of Duty series seems to have been confirmed by another informative job listing.
"Raven Software, developer of numerous award-winning games, including contributions to the blockbuster Call of Duty series is seeking passionate designers to join an established team at work on a first-person shooter," the ad reads.
Other positions vacant make general reference to ongoing and upcoming FPS development.
Last May, unconfirmed sources said Raven Software had been taken off an unannounced Bond game to assist Treyarch with DLC maps for Call of Duty: Black Ops.
In January, a vaguely-worded job ad again drew speculation by referencing Raven's involvement with an "established, console-based, realistic, first-person military shooter".
The LA Times cited anonymous sources in support of rumours of Raven's involvement with Modern Warfare 3.
Activision is yet to make any official statement or comment on the matter - or top formally reveal Modern Warfare 3, heavily rumoured to release in late 2011.
Thanks, That Video Game Blog.