The gentlemen within the various special forces train to kill (amongst various other things) by any means immediately available to them.
The UFC guys are sport fighters that abide by a set number of rules for combat.
Individuals in either vocations work by way of different standards. One guy goes out there to "win" a fight. The other guy goes out there to eliminate a target, rescue hostages and fulfill a mission involving tactical approaches.
A simple way of comparing it is that if you place Cain Velasquez in the world of a member of the special forces, say dropping both men in a jungle, with nothing but a SR-25 automatic rifle, the member of the special forces would kill Cain from about half a mile away before Cain even figured out how to click the safety switch off his gun.
On the flip side, if you drop a member of the special forces into the Octagon and you subject him to all of the stupid rules within MMA, Cain will beat the Special Forces guy. Now, it's not because the member of the special forces isn't strong, capable of fighting or in any way less of a true killer, but because you will have essentially stripped the guy out of a multitude of go-to techniques that would involve everything from snapping a person's neck, gouging eyes, breaking the bridge of the nose, punches to the kidneys, kicks to the scrotum and not to mention removing their weapons (guns, grenades, knives etc.).
By the way, members from the Special Forces have actually gone into the UFC. A good example of this is Tim Kennedy.
Here is an excerpt from WiKipedia:
Tim Kennedy joined the Army on January 4, 2004 and completed Basic Combat Training, Advanced Individual Training, Airborne School and the Special Forces Qualification Course. Tim was featured in Dick Couch's book about Green Beret selection called "Chosen Soldier" under the moniker "Tom Kendall".
In 2007, he completed Ranger School[4] and was assigned to the 7th Special Forces Group,[5] where he served on Operational Detachments Alpha. During this time he was also a sniper, sniper instructor, the principal combatives instructor for C Company, 3rd Battalion, 7th Special Forces Group. Kennedy deployed in support of Operation Iraqi Freedom and Operation Enduring Freedom multiple times.[6]
Among Kennedy’s multiple awards are the Army’s Bronze Star Medal with V device, which was awarded for valor under fire.[7] In August 2009, Kennedy transitioned from active duty to the Texas Army National Guard and currently serves in the position of Special Forces Weapons Sergeant.For other stories, look into Brian Stann. He was a Captain in the Marines and was awarded a Silver Star Medal for his gallantry in the battlefield.
"
1"