YMMV: Halo: Glasslands
- Base Breaker: Reactions to the depiction and characterization of Catherine Halsey, already a controversial figure among the fandom for her methods in the SPARTAN-II program, and Admiral Margaret Pargonsky, already a controversial figure for being the head of ONI, have split the fandom even more.
- Broken Base: Fans are divided over the Halsey hate: It's either been a long time coming, or the writer should shut up and focus on the story.
- Designated Hero / Villain Protagonist: The leadership and agents of ONI, because after a war that killed billions of your own people, violently undermining the most prominent pro-peace Sangheili leader is just the way to go.
- Designated Villain: To the author, Dr. Halsey is the embodiment of evil, and she won't let you forget it.
- Fanon Discontinuity: Many Halo fans like to pretend this book doesn't exist, if they don't flip out in anger at its mention. Most notably, the fan-wiki Halopedia documents all the canon from Glasslands... but isn't above passive-aggressively reinterpreting it in their favor. Just look at this excerpt from the Catherine Halsey article.
Halopedia: Many of those unfamiliar with the internal dynamics of ONI and the SPARTAN-II Programnote have come to interpret Halsey and her work in a highly negative light. [...] Such views often have their basis on information provided by the Office of Naval Intelligence,note which has frequently used highly selective or outright false informationnote to shift the blame for some of ONI's more questionable decisions on Halsey alone.
- Fridge Logic: How does Lucy, who is, like every Spartan, able to smash an Elite's face inside-out with her bare hands, not cause any real damage to Halsey despite slugging her at full force?
- Rooting for the Empire: Given how much ONI seems to want to start a new war right after the old one, you might find yourself rooting for the author's chosen antagonists.