Here are some 'tactical' folders which might be worthy of your consideration:
From the top, the Spydie AFCK in M2HSS; an A T Barr fighter custom; a (rare) Rogard coated classic large Sebenza; a new model small Seb, then a large one.
Ernie Emerson custom CQC7 and CQC6; a Kit Carson Stellite (r)/carbon fiber slim model 18. Next is the first Kit Carson #18 made of Talonite, below it is the third one, showing the other side. At the right side is the Gerber Covert Folder.
Which is best? Well, that is an unanswerable question. I will say that I was surprised to find that I had a Spyderco in the house; this would be a good knife to use if you might lose it. The A T Barr used to be my daily carry, but it is a big, thick knife. It would be my choice among these folders to use to dig a foxhole.
The all black Classic Seb is nice for those covert missions, but it has been a long while since I went on any of those.
The new model Sebs are very well put together, but have the ergonomics of a brick; rough corners make it uncomfortable to carry in a pocket, and using it for a prolonged period would be uncomfortable.
The Ernie Emersons are also well made, but the chisel grind makes fine cutting difficult. They really do cut things if you need to absolutely, positively cut them NOW. The CQC6 is a daily carry knife, in my leather bag I carry everywhere with me.
The Stellite (r)/ carbon fiber Kit Carson knife is an absolute wonder; it has a blade length of 4 1/4", yet weighs a mere 3 oz.! Will fit a tuxedo pocket nicely.
The Talonite (r) Carsons are wonderful; the entire knife is either Ti or Talonite; even the screws; one of these rides in my right jeans pocket every day; rugged and totally corrosion resistant. Best of all, ergonomics are wonderful, and there are no sharp corners to make carry uncomfortable.
The Gerber Covert Folder (first edition) is a rather common knife, except for one thing; it has excellent ergonomics for the left hand; it rides in my left jeans pocket.
So, the best tactical folder depends very much on just exactly what your tactics are likely to be. Will you possibly need to discard the knife and not look back? Will you possibly need to use it in salt water, and not have your Tuf-Cloth with you? Does it need to be slender and slim so that it won't print in formal clothing? Will other people see it? If so, is an innocuous appearance of paramount importance (Sebs rule here)? Need to do all around cutting, or just CUT when you have to?
All of these factors will favor different knives, but the three I carry I believe will handle most situations. But no one single knife is best. That darn carbon fiber Carson keeps slipping into my shirt pocket or my leather bag, however; it is an insidious piece of perfection.
Hope this helps, Walt