UPSX: Episode 2 Release B credits:

Leo - mapping work and retexturing/conversion work, additional scripts, additional story.
Jack Honda - additional mapping work, texturing and sound editing, story and translator messages.
Yrex - additional brushwork, scripting, texturing, testing/bugfixing.
Alcapowned for reanimated human meshes, initial Jrath pawn and his animations (for E2L8).
Teridax for Jrath mesh itself.
QTit for misc. scripts earlier on in the developement, reused for specific stages of Jrath, etc.
3, ISV-Andrew (GamesHarder) - testing.

Matrix - coding work for StunBaton weapon.
Windex - code for stunning script.
Valentin - parts of castle map for UPB-E2L4B.
Dots (Marco) - hub system script for UPB-E2L4B.
Frosty784 - parts for some human skins.

Legend Entertainment - sound sources and misc textures.

Original map authors:

Matthew Kagle for E2L6, E2L7.
Elya Iceking (Ilya Isaykin) for E2L4 (parts), E2L5 and "hibernator demo".
Jason Watkins for E2L4, E2L8 (part).
Nathan Silvers for E2L8, E2L9 (and 10 but became part of 9).

Fusion Creative Design (Eric Reuter, John W. Anderson, Bill Bobos).