ARMA 2: Operation Arrowhead version 1.56-1.57 Changelog
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VERSION 1.57 HIGHLIGHTS
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* improved netcode (better locality handling)
* new scripting commands
Engine
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    * Fixed: Cursor on the windows borders no longer flashing when attempting to drag/resize the window. 
    * Fixed: Win7/Vista Aero preview should no longer be activated by mouse movement while playing. 
    * Fixed: Helicopters no longer lifting off when aircraft passed over them (http://dev-heaven.net/issues/14589). 
    * Fixed: AI Helicopters wobbling up and down (http://dev-heaven.net/issues/14410). 
    * Improved: Enemy targets are now unassigned once their crew is killed. 
    * Fixed: doFire did not work on most targets. 
    * New: Multihome servers support. Commandline parameter -ip=my.ip.add.res available. 
    * Fixed: SetCaptive doesn't stop AI shooting at a unit/player (fix 2.0) 
    * Fixed: Groups were missing units after group changes on JIP clients. 
    * Fixed: LOD switching with -exThreads=0 
    * Fixed: Despite irTarget = 0 units/objects could be locked with TAB. 
    * Fixed: SetCaptive doesn't stop AI shooting at a unit/player.
    * New: allMissionObjects script command.
    * New: Script command setPlayerRespawnTime.
    * New: new AllDead command.
    * Fixed: Video playback stuttering.
    * Fixed: Locality issues of objects in MP (mainly updates from nonowner errors). Version raised to 1.57 due to MP incompatibility.
Data
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    * Add: camo (replaceable textures) selections for M2A2/3.
    * Changed: GPS added for all SUVs.
    * Fixed: A/MH6 main rotor artifact.
    * Fixed: Missions: 06 From Hell, task "Locate the pilot" always failed.
