EA’s holding a new shooter-themed sale on its Origin service, cutting the prices many of its PC FPSs down up to 50 percent. Battlefield 3‘s Back to Karkand multiplayer expansion, Battlefield 3 itself, along with the likes of Bad Company 2, Medal of Honor, Crysis and Crysis 2 etc. can be had for cheaps.
As was the case with the action sale a few weeks back, the offer lasts “for a limited time only,” so it’s best to act sooner rather than later. The offer page resides here, though not all deals are presented; Karkand and Bad Company 2‘s Vietnam add-on, while not listed on the page, have deals going on as well. Search if your friend.