I really don’t get the hate for the Library. It’s one of my favourite levels in CE. The Flood are a creepy and scary new enemy (on the first play-through at least…) who back you into a corner and attack relentlessly. You’re left fighting for your life with no way to retreat or charge past. It’s one of the rare times in the whole series where you’re forced to play defensively.

It’s also the level that introduces rocket launcher flood, wtf is up with them? So unfair that the enemies get such a good weapon!