The suit will definatly help against bullets and a bit of IEDs. However, it won't be fully protecive against .416 and the .50 cal because of the force it carries with them. A .50 cal I believe has about 10,000 joules of energy. 85 is lethal. With that much force, the suit will eventually break open, and the soldier will die. Also, the force of the impact can also injure a soldier significantly, even if the suit is not penetrated. Same with the IEDs. The force of the explosion will cause such force that no matter how powerful a suit is, truama will still kill you. However, I do see this as a much more survival against handheld weapons, suck as an ak-47. i would give the suit a 84. Besides, no soldier would allow a guy with a .50cal to hammer him countinously.