Well so far (im in chapter 3) Glassman managed to do something with the Didact's gift (we dont kow what yet, thorne is missing and halsey is back in the brig, also she was talking with Jul Mdama aparently, who was using her for something.
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Now if only 343i would start developing missions that have something to do with the excellent cutscenes... [Edited on 12.03.2012 2:33 PM PST]