// note, this is not very efficient, as evidenced by the three levels of looping required.
// If you call this every frame, you will not be a happy person.

public static class GameObjectHelpers
{
	public static GameObject[] FindGameObjectsWithTag(string tag, bool activesOnly = true)
	{
		if(activesOnly)
			return GameObject.FindGameObjectsWithTag(tag);
		else
		{
			List<GameObject> RetVal = new List<GameObject>();

			for(int i = SceneManager.sceneCount - 1; i >= 0; --i)
			{
				var Scene = SceneManager.GetSceneAt(i);
				if(Scene.isLoaded)
					foreach(var RootGO in Scene.GetRootGameObjects())
						foreach(var T in RootGO.GetComponentsInChildren<Transform>(true))
							if(T.CompareTag(tag))
								RetVal.Add(T.gameObject);
			}

			return RetVal.ToArray();
		}
	}
}