This is one of the most powerful Lego models ever. There are in total of 8 XL drive motors, 2M motors for steering and additonal 2M motors for winches.
Almost all of the parts are in LDD, but the following are missing: 8x 47349c04 - Wheel 72 x 34, with Lime Tire 72 x 34 Balloon Offset Tread 2x 61929 (BL: bb339c01) - Electric, Pole Reverser / Polarity Switch with Black Lead, Power Functions Complete Assembly Dont forget some strings for the winches.
You can also make a version with regular hubs and wheels.
Thanks to the amazing Catweazel for making the PDF instructions file!