The coolest way to complete this mission is to crawl through the front gate and position yourself in some bushes above the base. Snipe everything in site and make a mad dash for the Hinds. With some skillful LAW and stolen RPG work, take out the roving tanks and get one of those Hinds airborne. (took 3 or 4 tries 'cause the T-80's will blast you while the rotors are picking up speed) Then sit back, relax and destroy anything that moves with some serious air-to-ground firepower (kill the shilka's hiding below general's house). Then land by the house, stroll in and help yourself to the papers. Stealing the Hinds in "Hind Attack" is also a truely satisfying method of completion.