I looked at the rules and one of them is to keep the original game audio. But recently I've seen more and more verified speedruns with music added. Is that rule no longer true?
Basically adding music to it or listening to music as you are running is okay. The rule is referring to completely removing or replacing audio. To address runs that break this rule, there is usually a video with game audio given to the verifiers (The main reason for this being a microphone unintentionally being on).
Attention everyone, a new category for Category Extensions has been made. The category is called Mixed Weapons%. The category rules are as follows:
This category is Any% and only meant for multiplayer runs. Complete the game as fast as possible but everyone must be using a different weapon to main.