Prior to 2003, there were few factory options available that would increase the offroad ability of your YJ or TJ Wrangler. Lift kits, rock sliders, heavy duty transfer cases, heavy duty axles, selectable lockers, sway bar disconnects, and lower axle gearing (among other things) were reserved for aftermarket manufacturers, or ambitious do-it-yourself-ers.
Less than two days after posting here that Jeep had yet to confirm if the Call of Duty or Mojave special editions would continue for 2012; Jeep released information confirming a 2012 Call of Duty: MW3 Special Edition Wrangler. It is still unknown if Jeep will be sending me a 2012 Crush Orange Wrangler Unlimited Rubicon with a black hard top, 6 speed manual trans, leather, and all the geeky navigation and phone connectivity do-dads for a long term (permanent) performance evaluation. (I’ll wait for them to call me over the weekend, to discuss delivery.)