We are pleased to announce the release of Arma 2: Operation Arrowhead patch v. 1.54. Among the variety of tweaks and fixes detailed in the attached readme file, this patch brings a number of specific new features, such as: a taste of British Armed Forces units, vehicles and weapons; compatibility with the forthcoming add-on, Arma 2: British Armed Forces; various improvements and fixes alongside engine upgrades with the extension of the Engineer's role and the ability for players to effectively operate and command artillery and mortar units.