I do not even own any Cold Steel folders, but that was the first thing that came to mind, one of their Triad lock folders. The value to price ratio is hard to beat if you need a folder that is very resistant to abuse. Also, the AUS-8 blades are easy to sharpen in the field. That steel is tougher than many currently popular stainlesses on the market today, and toughness is very good to have in a rough environment. Save the expensive knives for after you come home from deployment.