It has been found that the majority of Dark Ops knives were based upon Extrema Ratio designs. Several early prototypes from Dark Ops featured the words "Extrema Ratio" etched upon their blades, rumor has it. Search the forums for like discussions. The super cobalt steel Dark Ops uses is, in fact, close to N690Co. As a matter of fact, the "Co" in N690Co stands for cobalt. Coincidence? Happenstance? Who knows.
The general opinion is Dark Ops are not for dark ops. They are for the dork ops of mall ninjas. I handled one of their large folders at a gun show and found it to be of decent quality, but not enough to justify the price. The lock was cumbersome and there was, in fact, some blade play.
God bless you, America, and our men and women overseas.
KATN,
Wade
P.S.: Don't pick a fight with a moderator.