C-Variants

C-Variants are variants of entities that are usually more buffed versions of their predecessor, such as doing more damage, or having a harder mechanic. The only C-Variants you can encounter in the game through normal means are:
#C-1 
#C-25 
#C-45 
#C-60 
#CG-55 
There are also some C-Variants that are either removed, hardcore/insane mode exclusive or admin exclusive, here is a list of these entities:
# GC-10 (Insane Exclusive)
# CC-25 (Admin Exclusive)
# CCC-25 (Unofficial Insertable)
# CB-25 (Unofficial Insertable)
# CG-26 (Admin Exclusive)
# CC-45 (Admin Exclusive)
# CGTA-55 (Admin Exclusive)
# CC-60 (Admin Exclusive)
# CG-100 (Unofficial Insertable)
# C-105 (Formerly Hardcore Exclusive)
# C-150 (Admin Exclusive/Removed)
# C-185 (Formerly Admin Exclusive)
# CG-200 (Admin Exclusive)