A new trailer from ARMA 2: Operation Arrowhead shows off the just-released standalone shooter expansion from Bohemia Interactive Studios. The new clip is from the tutorial for the High Command system, described as a "lesser-known" feature of the game. Word is: "The walkthrough provides a sneak peek at the tutorial available in-game and demonstrates the simplicity of commanding larger groups of units; issuing direct orders, setting waypoints and conditions, and assigning the behaviour of groups of units. Getting to grips with the simple command interface is important, and doing so reveals an entirely distinct type of gameplay experience. High Command is a powerful tool, which puts you in dynamic control of the entire battlefield situation in a real time strategy viewpoint - with as much, or as little control, as you like." The embedded version of the clip follows.