When I First met the hive I was torn between Lord of the rings and Fallen Skies. both of these things I pull from strongly when I try to explain the hive. In fallen Skies I know the aliens are drones of mind control parasites of a controlling race which in time twisted the hosts features into the insect things. which you see in a lot of there enemy types of other races besides the vex since there mechanical. Secondly I have noticed that they are also grown like Orc's in Lord of the rings mostly done by the Wizards who I see are a lot like the Warlocks helmet wise and that only makes sense why they have the epic powers and such. But all I have to say is there has to be another class to the hive one we have not met yet sure they make it look like the wizards are the controlling class but they are also undead, that didn't make any sense to me. maybe a living class within the hive, is controlling them. I mean they have there own ships maybe if we get a mission to raid one maybe we will see this maybe last enemy type of the Hive that may or may not exist.