Added more pelicans, looking into adding some scripted dialogue. It's difficult to make it fit with lines already found in the game. I also added a couple checkpoints at the base entrance area, it will attempt to give one after dealing with the first wave and one more time after the wraith is cleared while you are nearby the structure. Maybe I will add one more after the pelican drops off ODST reinforcements so people can choose to betray the marines for fun without sacrificing progress in the level.