I'll admit to going in with a very heavy heart because I was so disappointed by the last one (and I've still only seen it once - I had no inclination at all to even stream it as a catch up before I went out to see this).
While I'm not going to include anything even remotely spoilery, The Bone Temple is the polar opposite; thoughtful, intelligent and interesting and a lot of fun! I love Jack O'Connell a little bit more every time I see him, it looks stunning, there is plenty of carnage and it feels like a genuine, natural evolution of the events of the first film. Ralph Fiennes acts everybody else off the screen 😀
The infected - bar Samson - aren't actually in it that much, and it's the better film for it, I think. And there's Iron Maiden 👍