The Prima Official Game Guide (POGG) for ODST contains another reference to the Glyphs that I managed to miss when I originally read through it. The reference is in regard to noticing the clues the SI provides to lead you through the city. After mentioning the car alarms, changing signs, et cetera the guide reads (pg. 33, under "Tip"):
Covenant glyphs also hint at the direction you must take.
Well I'll be a Forerunner's Uncle! Sure wish I had noticed that the first time through! This certainly doesn't imply that directions are
all the Glyphs are for (don't forget the
alleged Staten quote re: Forerunner Ships). It does confirm what we have observed for months: the A and B glyphs lead us to clue items the majority of the time; the Y-Glyphs point out weapons (beams rifles, for example). Perhaps the A nd B glyphs at the end of Kikowani Station were there simply to indicate "Hey! Go down that hall and blow the Squidhouses up to end the level!" Seems redundant with the voice scripting, but who knows? Perhaps the scripting came later.
If all the glyphs are for is to mark a direction, then which direction is the Super TriGlyph (and others in District 04) trying to get us to go in?
My apologies for missing this back in September. Truth be told, I never had a need to refer back to the POGG once I had familiarized myself with the Firefight levels. I found it today while double-checking some facts on COMM Data appearance requirements.