I completed tip of the spear twice on legendary solo and both times i completed it it never gave me the achievement nor show me the legendary difficulty completion on the mission when selecting missions. I play on pc, not even steam gave me the achievement for it. Please try and fix it or do something. Imgur: The magic of the Internet <- theres a link of the mission select after completing it solo. and a clip of me completing it -> Twitch <- hope you can fix this soon ty.
Same Problem Feb 2021 - Whats going on 343?