The a2oa_patch_1_54.zip file you have requested: Official Patches / v154 / ArmA 2: Operation Arrowhead Patch 1.54 - 189.04mb is not available. Perhaps try browsing all files for the game ARMA 2: Operation Arrowhead and upload any files you want to share or are missing. This is the only information we could locate:

Engine------* New: GameSpy modhash key contains list of mods hashes and is used to checkthere are additional mods on server missing on client (yellow icon in UI).* New: Mods contents hashes are compared instead of mods lists when equal mods A new patch for ArmA 2 Operation Arrowhead has been released. This patch will bring your version of the game to 1.54.

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