While Codemasters may be done with adding new content to Operation Flashpoint: Dragon Rising, Bohemia Interactive is still prepping up their plans for their commercial expansion pack to their own open world military shooter ArmA II. This week the developer released the first gameplay trailer of the expansion, Operation Arrowhead, via YouTube.

The trailer shows off a number of the expansion's new vehicles including one that is particularly cool, the "AH-6X remotely controlled reconnaissance helicopter." Other vehicles in the expansion pack include the Abrams tank, the M2A3 Bradley armored fighting vehicle and more. The expansion, which is set three years after the events of ArmA II, will be released sometime in the second quarter of 2010.