Mercs Inc is a spin-off title based on the Mercenaries franchise, planned for the Xbox 360, Playstation 3 and PC. Pandemic Studios worked on a prototype of the game until its closure in November 2009. After a video of this prototype leaked, EA announced that the game would be developed at EA LA.
As we can read on Wikipedia:
The game was first rumored to be in development by Pandemic Studios as either Project X or Y which were rumored to be based on the Mercenaries franchise. Footage of the game was first leaked onto the internet on November 24, 2009, the footage was a multiplayer trailer of the game. The game was then officially announced by Electronic Arts less than a day later though without a proper platform or release date. The announcement of the game came less than a week after the closure of Pandemic Studios by Electronic Arts as it had been development there under the name, Project Y, the game is currently being developed by remaining Pandemic Studio staff members located at EA Los Angeles.
In november 2010 another Mercenaries video leaked from Kotaku, but we are not sure if it’s from the same project as Mercs Inc, as they call it “Mercenaries 3: No Limits”
Thanks to Jason for the english corrections and to DCodes7 for the contribution!