I need to study a martial art that is good enough for a government agent or spec ops.?

If you get into that line of work they will teach it too you. But if you are talking contractor stuff then I would suggest Pencak Silat, Bujinkan Budo Taijutsu, Krav Maga, and Systema. These are all styles that a great many governement people use including contractors. Why? Because they work! There are many more than this.