I see all this confusion after todays stream about taken and chosen. Here Is how I think it is the taken or dark ones are people that were caught in the meld. But burning the mass meld at the start some strong willed people were able to overcome its grasp. That group of people became the dark ones as they are not excepted by the normal terrans or the advanced Ascendant witch are a hole other story of there own. So the taken have as much reason to fight the chosen as the regular humans. So in there zone areas the chosen will be attacking as well. Just because the meld tried to take you once and failed dose not mean it will not try again. This has no backing in fact what so ever its just the only way my mind can put together all the info we have in a working order.