Russian special forces skilled in highly-advanced CQB, and with the objective of getting behind the enemy lines and getting the job done quickly and efficiently.
Although they lost their fame at the end of the Cold War, they are still highly-capable soldiers trained on all aspects, including counterterrorism.
See also GRU.
Verb: To achieve a goal in an extreme, badass, or simply awesome manner. Bonus points for crazy stunts, unusual weapons, and explosions.
See Also: Backflip Hatchet Attack
A butthole used it as his nickname for a game called Ravenshield