The rule of thumb for any multi-function tool is that it won't perform any of its functions as well as a tool dedicated to that one function. The 5.11 looks like using some of its functions subjects the user to high level of risk, as well. I like tomahawks and have a couple full-metal ones, but I wouldn't choose one as a pry tool. Ever. Things that you have to pry open sometimes come apart dramatically, and then you are trusting that your leather or kydex mask over the pointy bits are going to protect you without failing.
If you do want to get a metal haft ax, get a good pair of gloves to go with it. Without scales to protect your hand, the shock transmitted to your hand is tremendous. RMJ charges top tier prices, but if you look at their handles you can see the difference. At the $100-ish price point, the scales thicken the handle but often leave the leading edge of the metal exposed. If you want a functional tool that is both hammer and axe, I would get a CRKT Chogan with the wooden handle (I don't know if the hammer is effective on the all-metal version) or an Estwing Carpenter Hatchet or Rigger's Axe. Toss an Estwing prybar in there too, and you would have 2 reliable, effective tools with a miniscule chance of failure. I don't know how often a 5.11 operator tool gets hard use, but my Estwing prybar has seen monumental abuse and only lost paint.