The newest as well as earlier patches are also showing the same error when run with -showScriptErrors startup parameters
http://forums.bistudio.com/showthread.php?109511-ARMA-2-OA-beta-patch-74858/page7
http://forums.bistudio.com/showthread.php?108575-ARMA-2-OA-beta-build-73968/page5
http://forums.bistudio.com/showthread.php?105517-ECHO-fire-director/page12
http://forums.bistudio.com/archive/index.php/t-108186.html