Clean diet. Low fat, low carb, high protien. 20-30 min 2x day of hardcore fast cardio. Drink 1-2 gallons of water per day. Stay around 1500 calories on days you dont lift weights. 2000 cals on days you lift and a little more carbs are OK (good carbs). Take fat burners like Meltdown or Redline by VPX or Lipodrene if you are in a hurry to get there.
When your body fat is around 8% then do crunches and core work.
Or just train 5 days a week at a real MMA gym and eat 2000 clean calories a day. In less than 6 months you should have your 6 pack.
