This is from the Springfield website.
Omega - The Omega's frame is basically a standard 1911 Government model, but the slide assembly is a special design and was available in both 5" and 6" versions with either a standard blued finish or satin hard chrome (the frame was blued regardless of barrel length or slide finish). Designed by Joe Peters of Peters Stahl in Germany (West Germany at the time) the Omega slide had a number of unique features. First off, it used a linkless "modified Browning cam-lock" system. Also, since the Omega was designed to be a multi-caliber gun where only the barrel, and possibly recoil spring would need to be swapped out, Joe Peters and Tim Dillon (from Springfield Armory) designed the slide to make use of dual-extractors so that cartridges with different case head dimensions (including the 9mm, .38 Super, .38 Special Wadcutter, 10mm and .45 Auto) could be reliably extracted and ejected. Finally, these guns were available with "integral vent ports" to reduce muzzle flip. Though these guns are highly sought after by collectors, there were problems with parts breakage and since Joe Peters and Springfield Armory have terminated their partnership on the project spare parts are no longer available from either Springfield Armory or Peters Stahl.
Win the fight, everything else is irrelevant.