C.A.S.S.P.U. is the Central Autonomic Service System for Plug-in Use, designated for the creating of ambience of SCP-049's Chamber Area, Menu music, and the Omega Warhead
C.A.S.S.P.U. has been in development since 2.0 also known as the Lights Out series, which featured a lighting overhaul, SCP-049 room changes and many more. The biggest part of SCP: Breached Containment is C.A.S.S.P.U., an audio bot designed with many purposes, serving as Control for the Nine-Tailed Fox, stating who's alive or dead, to the announcement of the Omega Warhead Detonation Sequence, to even creating the Alarm at the beginning of every round. C.A.S.S.P.U. is by far the best part of SCP: Breached Containment, making the server so much fun to play on with it's ambience and music. 4.0 introduced C.A.S.S.P.U.'s first major rework, allowing any player to mute any selected bots and the bot able to display what SFX is currently playing allowed players to have an experience that would be unforgettable.
Throughout it's lifetime, C.A.S.S.P.U. has played tons of different music and Sound Effects, scrapped or reworked, it's been the beginning of it all. 3.0 also known as the Dies Irae Update, had back-end changes allowing for easier and more reliant script writing which also brought C.A.S.S.P.U. a few new changes, such as new Sounds and Music as well as some back-end related changes.
In 4.0.0 C.A.S.S.P.U. received an overhaul allowing players to mute certain bots depending on the situation or if they do not enjoy them at all, with the exception of the Site's ambience.