I used a Benchmade Emerson design tanto folder (CQC?) I had from high school and a leatherman. Never issued anything special as a paratrooper, in scout platoon, and even in lrs. The M9 bayonet was it and they weren't any good. I remember a few of us put them to the test and they broke at the tang several times.
Most guys had multi-tools and a few had some nicer tacticals. But if you wanted something special you had to purchase it yourself. I even had my own leupold rifle scope if I ever wanted to attach it to my weapon. We did do a group purchase, though... I remember our units getting spending money that we put toward platoon and squad tools. Things like saws, hatchets and even a notebook computer for powerpoint training presentations, etc. But we never bought knives for everyone. Problem was that having knives would of made it so we had to keep track of them like everything else. Another sensitive item would of just added to the headache, especially considering a knife could be easily lost in training, combat, or even stolen in garison.