Credits (ideas/inspiration, resources/sprites/sounds, special fx, coding, etc):
Don Ramon (both v6 and v10 mods)
DeeperThought (Dukeplus mod)
Sergeant_Mark_IV (both brutal doom and brutal doom 64 - special mention for the cool special fx and logic taken from here, also for doom monster sprites with fixed offsets, attack animations/inspiration, and extra deaths/gibs sprites)
Ahpiox (Nuke Town mod)
torridgristle (hands sprites)
RicardoLuis0 (aim assist mod)
m8f (laser sight mod)
Mikk- (Universal Headshots mod)
realm667 (SawedOff shotgun sounds)
Jimmy (dn3d fonts, pigcop melee sprites)
kadkad14 (duke resources, fonts, fixes, advice, duketalk fix, intermission screens, beheaded sprites: battlelord, cycloid emperor, cycloid incinerator, king cobra, gorilla captain, netherworldqueen, alien queen)
LossForWords & MentzWolf (SSG)
Captain J (casing sprites for pistol and shotgun)
A_D_M_E_R_A_L (EVP mod)
ntmai team (Nobody Told Me About id mod)
RPD Guy (brutal duke mod)
December Man (cosmetic duke mod)
Alien Armageddon team (Alien Armageddon mod)
RichardStorm (KickAss Duke mod, also explosive shotgun fire sound)
AMC TC team (AMC TC mod)
Sebabdukeboss20 (Octabrain Purple Gem)
Don Ramon, Sebabdukeboss20 & Trooper Dan (Cyber Enforcer, Green Octabrain)
Cage (Lameduke's trooper sprites)
QCDE Duke Addon team, Sebabdukeboss20 & Trooper Dan (dukinator, megabrain, assault pig, pig brute, alien sniper)
Hideous Destructor mod (white spark effects)
Project Brutality mod (some sounds for the shrinker's alt fire)
Samsara mod (explosive shell puff sprites)
StrikerMan780 (Duke Nukem TC)
Fantinaikos (human cop sprites)
Dieagamer101 (idea & bug report for the new SSG logic)
twelvenipon (small access cards sprites, size fix for regular access cards)
wran (improved normal status bar, fixed skill text)
ZSDuke mod (some code for checking pits)
Frozsoul's mutator for Brutal Doom (Hell Knight charge attack sprites)
Brutal Wolfenstein mod (WolfensteinSS sprites with fixed offsets, attack animations/inspiration, and extra deaths/gibs sprites)
Zdoom forums community (general coding posts)
Onox (Cycloid Incinerator sprites)
I'm probably forgeting someone, so please let me know.