> I think it is "Sick of Life" By Godsmack. Hope that helps!
Nope. Not the hard-hitting metal song from the Army commercials. This is the slow, melodic song. It starts with a piano, then the drums come in, followed by a sweet, Claptonesque, slow guitar solo.
The scenes in the commercial show emtpy cubes and offices, inferring that the reservists are off defending the country instead of being at their regular jobs. Lots of people seem to be looking for this one and no one has been able to identify it on many forums I've visited.