Epic VP Mark Rein has posted on the Gears of War 2 forum, indicating that a major title update for the best-selling sequel is due to arrive in January. Some of the improvements planned: adding Achievements for the DLC content; fixing bugs; and addressing exploits.
Some of the online exploits the patch aims to fix involve players wielding an invisible shield, gaining infinite Lancer ammo and equipping a shield with a two-handed weapon. Epic also plans to include a harsher penalty for quitting matches early, spawn point protection and the ability to see the Submission flag using Tac/Com.
Most importantly (to shotgun whores), the new patch will fix "client side hit detection," so even in "laggy" matches the gun will be more reliable. That's great, because those shotgun folks really make the multiplayer an inviting experience.