- last post: 01.01.0001 12:00 AM PDT
Halo is said to be "instillation 04" by the monitor... there needs to be around 25 to destroy all sentinent life in the galaxy, or at least that with sufficient biomass to sustain the flood.
He also mentions that "once all the other rings follow suit" giving the idea they're all connected in some network or summit.
-EDIT- why be ringed shaped however... might not be, we'll find out, although Bungie have confirmed another Halo ring comes into play so it makes sense that all the instillations are rings.
[Edited on 6/23/2004 12:36:02 PM]