All my life I've worked my ass off to become a SEAL but my other passion is fighting and getting into the UFC would be freakin sweet, and I know you can train and fight MMA as a SEAL or in any other military while off duty.
You think you can balance the time commitment to be a professional fighter AND a special operations warrior?
These aren't a matter of flipping fries at McDonalds for 20 hours a week. These are time consuming careers. Are you sure you know enough about either to pursue them?