- 2 Coldfront
- 5 Colin 'ArKile' + Daniel 'INFERNO' Winter
- 2 Colin 'ArKile' + Daniel 'INFERNO' Winter Edited|2Åmßõ*ħ§*
- 2 Colin 'ArKile' Winter & Daniel 'INFERNO' Winter
- 3 Colin 'Carnage' Murphy
- 6 Colin 'Couchman' Kilcoyne
- 5 Colin 'Lruce Bee' Murphy
- 4 Colin 'Wyzard' McCann
- 3 Coll@
- 3 commander
- 2 commander_keen
- 3 Common & DoctoR DeatH
- 2 Common&[IFC]SerialKiller&DoctoR_DeatH
- 5 Common&DoctoR DeatH
- 38 Common&DoctoR_DeatH
- 3 Common&DoctoR_DeatH{IdeaFreddy}
- 2 Common,DoctoR_DeatH,SuzySushi
- 2 Conan Deleon
- 2 Conan Deleon/[ )A[ )s_RooTBeeR
- 2 CoNDoR
- 2 Conny -Karg- Landstedt
- 5 Continuum
- 10 Conversion from MarathonWolfchild
- 3 ConversionPaul "icepick59" Fritts
- 5 ConversionRed Dwarf
- 2 Converted From UT To UnrealJet<NxS>
- 2 Converted"VT|CreepingDeath"
- 2 Converted--=BliZz=--
- 2 Converted--=BliZz=--/FixesBarbie
- 3 ConvertedJames 'CreepingDeath' Morgan
- 5 ConvertedRed Dwarf
- 2 convolvulus
- 2 cookiemonster[MoA[ & RasPy[MoA]
- 2 cookiemonster[MoA]
- 7 Cooper "BigBird" Faust
- 3 CoRaSeNt
- 3 Corey
- 5 Corey (Kyben)
- 3 Corey Robinson
- 6 Corey(:K256:)
- 2 Corrupt Mind
- 2 Corruption
- 71 Cory 'SpoonDog' Spooner / David Catmull
- 4 Cory Spooner 'TheSpoonDog' + zOil for "CB"
- 2 Cory Spooner 'TheSpoonDog', IG - khxmz
- 9 Cosmix
- 3 counterblast (VCTF Version)
- 4 Cow
- 3 Cpl.Shepard
- 2 CR125
- 2 CR125 & Lvkkie
- 6 Cr4zyB4st4rd
- 2 Cracker64
- 2 Crackers
- 2 Craig "khemzikal" Bachmann
- 2 Craig Woodward
- 2 Crankcase
- 9 Crash7
- 4 Crayfish
- 9 Crazy