This bug allows the player to fire with the starting handgun indefinitely without needing to reload.
To perform this bug you need to make sure you enter an end of level elevator with 0 ammo on your counter and BEFORE it reloads your clip again.
If done correctly the next level will load with your ammo count at 0 and the game will be confused and think you've not got any ammo at all, but will let you fire continuously without needing to reload.
The bug will stay active for as long as you have the handgun equipped. If you collect new weapons this will reset the bug and you'll have to perform the trick again.
Hey all!
Just a quick update to say that @kapdap has kindly made some atuosplit tools for each game for people to use with their EMU runs to give everyone the most accurate timers possible.
For those new to using auto splits with Livesplit here's a video I found that should help get you started -