I am not sure that I would like to carry any of those folders into combat.
The ones below are a different story:
If you don't recognize the bottom Benchmade, it is an early Brend design. One of the first collaborations Benchmade did with a custom maker.
The large Camillus heat, a Zero Tolerance 0801and a Kershaw Blur BDZ-1 tanto
A couple by Columbia River Knife and Tool.
The top one is the M1, designed as a tactical knife by Greg Lightfoot and made in Taiwan.
The large one on the bottom is called the Desert Cruiser designed by Hammond. It was made in Taiwan.
Top – Ontario Knife RAT
Middle – Kershaw Blur BDZ-1 tanto
Bottom - Kershaw Blur S30V
The only one of these knives that I would be really reticent to carry in combat would be the Ontario. I have used the smaller version quite a bit, but not the larger version.
The Kershaw Blur may not be marketed as a tactical knife though I believe it would be every bit as effective as many that are made for combat.
Oops, I will have to be back in the day or two, I just remembered some more tactical folders I have.