HARDEST Halo Achievements from EVERY Halo Game

From Halo CE to Halo 5, which Halo had the hardest achievements of all time? Halo 3 had the Vidmaster Challenge, Halo 2 was hard on Legendary, Halo LASO and Speedrun are some of the most difficult Halo achievements. Halo Completionist Channel:    / halocompletionist   Buy some Rocket Sloth Xbox 360/Xbox One Merch! https://goo.gl/FaVfnz Join our Discord:   / discord   Become a Member and join our Channel! https://goo.gl/Dpahpo 📅 Years Later Review Playlist: https://goo.gl/Sr91r4 🎮 Xbox 360/Xbox One Playlist: 🔫 Call of Duty Videos: https://goo.gl/UM4NWD 💫 Halo Videos: https://goo.gl/5mNurS 💻 Gaming Tech: https://goo.gl/NcCq7j 📑 Top 10 and Top 5 Lists: https://goo.gl/FesRdh 🎮 Worth Buying It? Playlist: https://goo.gl/KTTiiU