Halo Infinite does sound as if it has puzzles. Someone who worked on Infinite for 2 years posted on LinkedIn that he helped create narrative events, combat encounters and logic puzzles.
And hidden areas are also confirmed via the blogs. Hidden Caves.
<p>Welcome to the latest Inside Infinite! In this monthly series, we aim to bring you closer to our development process by sharing our vision for Halo Infinite and speaking to key areas of the game. Our last two posts featured the Art, Graphics, and Live Teams in December and the Sandbox Team in...
www.halowaypoint.com
<p>Hey everyone, I’m Joseph Staten. If you’ve been a longtime part of the Halo community, you may already know me. If you’re new to the community: Hello! It’s great to meet you. I was part of the Bungie team who made Halo CE, Halo 2, Halo 3, Halo 3: ODST and Halo: Reach. I came […]</p>
www.halowaypoint.com
What they're doing with Halo Infinite here I honestly most compare to Batman Arkham Asylum. It wasn't an open world game, but it had many elements of freedom, light puzzle solving, upgrades, collectibles/optional objectives.
The Arkham Asylum formula was about bringing you closer to feeling more like Batman based on the set of tools an gameplay options you were given. Halo Infinite is doing precisely that, but for a spartan.