A2OA: Patch v1.56

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ARMA 2 Operation Arrowhead UPDATE 1.56

Copyright (c) 2010 Bohemia Interactive. All rights reserved.

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CRC32: EF4BF251
MD5: 1f2295dc5c6a8197b62153806789e3a0
SHA-1: 575066eb00bb250ebe67a407cccf1864eb292e8d


An original version of Arma 2: Operation Arrowhead 1.50-1.55.


  • Run the patch exe to apply the patch setup automatically.
  • It will install all content of the patch to the folder with your Arma 2: Operation Arrowhead installation.
  • Please note that it is not possible to rollback to a previous version after the installation of this patch, only a full reinstall of the game is possible, if you want to keep your previous version you may want to backup the entire game installation folder before applying this patch.
  • NOTE: This patch will also update your ARMA 2 1.05 to 1.08 and ARMA 2 BAF 1.00 to 1.02 if necessary.

Version 1.56 Highlights

  • Arma 2: Private Military Company Lite - all units, vehicles and weapons from Arma 2: Private Military Company are included in this patch with lower quality textures and audio files. The full version of Arma 2: Private Military Company with high resolution textures and packed with a new campaign is available for purchase; see http://www.arma2.com/pmc for more information about the content of Arma 2: Private Military Company.
  • ARMEX - The Multiplayer Armory - enables you to try out all weapons and every single vehicle model from Arma 2 in dynamically generated missions with up to eight friends online or over LAN!

Version 1.55-1.56 Changelog


  • Add: more camo (replaceable textures) selection for OA vehicles.
  • Fixed: missing shadows and heads in distance LODs for some OA characters.
  • Added: MP Armory.


  • Improved: -exThreads=3 now default for dual cores.
  • Improved: -cpuCount defaults improved for 6 or more than 8 CPUs.
  • Fixed: No more LOD blending issues (esp. with vegetation).
  • Fixed: Ignored collision with some vehicles.
  • Improved: AI cover selection improved a bit.
  • New: Video options VSync selection.
  • Fixed: Character collisions with stones often resulted in flying or being stuck. (-dead link-)

BAF changelog 1.01-1.02

  • Added portrait and wounds of PMC operatives
  • Fixed CM immunity of missiles
  • Missions have new headers
  • Adjusted sensitivity of Her Majesty's soldiers
  • Music tracks have their respective names displayed
  • Adjusted values of many items in armoury
  • L111A1 sounds better on Jackals
  • Backpacks are now useable in editor
  • Fixed names of IEDs
  • Many weapons are now able to hold compatible magazines designed for other weapons
  • Snipers have learned how to handle AS50 correctly
  • US flyboys adjusted HMD for Apache and BAF pilots are now able to aim unguided missiles better