Not sure if anyone else has experienced this in the retail version of MCC. I always play Halo CE with classic visuals and classic music. Throughout the campaign, music will sometimes cut out suddenly, then come back on later on. On the level, 343 Guilty Spark, after the cutscene when chief views the helmet recording, the audio sounds distant and muffled for about 30 seconds when you encounter the infection forms for the first time. Does not happen everytime. However, it's definitely a minor annoyance. On a separate note, I would like to say as a day 1 Halo fan, having the Halo Anniversary weapon/melee sound effects instead of the original sounds from 2001 Halo CE was always a tad bit disappointing. Please put the old sounds back in Halo CE! That includes multiplayer too! Or make it like Halo 2 Anniversary where you have two options: Original sounds/graphics/music or remastered sounds/graphics/music. Just my humble opinion. Thanks for revisiting Halo MCC!