- last post: 01.01.0001 12:00 AM PDT
After reading all the books, I think the flood has a basic caste system, though the actual infection spores appear the same, I think they each have a different sentience and intellectual level. This might explain the different forms that they take on after a succesful infection. I agree with a couple of the above statements, that it is quite possible that they don't use grenades because of the blast radius and the relative fragility of the infection spores.
As for the elites throwing grenades, after beating Halo 1 on all difficulty settings, I don't recall them ever throwing grenades. They are a pretty egotistical race who seem to enjoy the melee/in your face kill. I would think they view it more as a weapon of cowardice. Most elites appear to charge after the first couple of weapon volleys.
My 2 cents