The deluded, possibly insane leader of the entire Covenant civilization, this pontiff is leading his followers down a suicidal path.

The Prophet of Truth intends to activate the Halo array at any cost, and is happy to sacrifice his culture to do so. The Prophet fully believes that he can follow the Forerunners to their mysterious final destination and share their ancient and unlimited power. The Prophet also knows that the secret to this power may lie in the ancient sands of Earth.

NOTE: This text is interesting as it would appear to eliminate almost completely a fiercely debated topic; namely, whether Truth understands the true nature of the Halo installations or not. However, it is somewhat self-contradictory. Describing him as "deluded" seems to indicate he is not fully aware of all the consequences of Halo activation. That he is willing to do so at "any cost" would indicate that possibly he does, or perhaps that even knowing would not change his mind.

All in all, if Truth is merely insane it is a much less interesting outcome, and if the resolution of the conflict requires killing him, it will likely be much less satisfying. However, it is also possible that this text merely represents UNSC supposition, which is likely incomplete information.