OnMissionStarted 
Usage 
- No return behavior
Example Autogenerated 
csharp
private void OnMissionStarted( BaseMission instance, MissionInstance missionInstance, BasePlayer assignee )
{
    Puts( "OnMissionStarted works!" );
}Location 
- BaseMission::MissionStart(BaseMission/MissionInstance instance, BasePlayer assignee)
csharp
//---
	}
	if (this.AllowedTutorialItems != BasePlayer.TutorialItemAllowance.None)
	{
		assignee.SetTutorialAllowance(this.AllowedTutorialItems);
	}
	Interface.CallHook("OnMissionStarted", this, instance, assignee);
}