Okay now I've got a few minutes.
Bodyfat percentages for fighters I would say run around 8-15% with mos of them being around 12%. As for what % you need, there are realistically too many variables.
The gym you linked to just looks like fancy circuit training. I would suggest that you buy Infinite Intensity or Never Gymless by Ross Enamait. Both books are filled with workouts that will kick your ass in 20 minutes. I would reccomend Infinite Intensity if you are only getting one, although both are great. Here are some links to check out: Infinite Intensity Never Gymless Articles and Example Workouts
A couple of good workouts from Ross: 10 Minute No Excuses Workout The Interval Challenge Work Capacity 101 Quality over Quantity
Also for weight loss, diet is key. Check out these links and your bodyfat will drop without a problem: http://www.johnberardi.com/articles/...on/7habits.htm http://forums.mmanews.com/showthread.php?t=4155