OK I think I might know what that x 2 thing means. Having looked at it again, I believe that if you double tap the button, it performs a dodge, as it seems that is what the little dude icon is doing (not sprinting).
I believe the first icon is the amount of Adreno shots you have left, the purple sight is your TTD (Tactical Time Dilation) and the x 2 with the running guy eludes me too lol. The blue-green bar (if I am correct in thinking you mean the one under your HP) represents the TTD.