Since the release of the Alpha in march there are some "new" eventhandlers referenced in the Arma3.exe which the com has asked for but they are still not implemented (they are part of VBS for a long time).
Examples:
TurnIn http://resources.bisimulations.com/wiki/Category:VBS2:_Event_Handlers#TurnIn.2FTurnOut
TurnOut http://resources.bisimulations.com/wiki/Category:VBS2:_Event_Handlers#TurnIn.2FTurnOut
GetInMan http://resources.bisimulations.com/wiki/Category:VBS2:_Event_Handlers#GetInMan.2F
GetOutMan http://resources.bisimulations.com/wiki/Category:VBS2:_Event_Handlers#GetInMan.2FGetOutMan
CargoChanged http://resources.bisimulations.com/wiki/Category:VBS2:_Event_Handlers#CargoChanged
LoadOutChanged http://resources.bisimulations.com/wiki/Category:VBS2:_Event_Handlers#LoadOutChanged_.28Unit.29
Suppressed http://resources.bisimulations.com/wiki/Category:VBS2:_Event_Handlers#Suppressed
Are there still plans to add them or not?
Those eventhandlers would help addon and mission makers quite a lot.