Nimar_F5Man - creator and author.
EasyGUI RVC (now obsolete) via Google Colaboratory - on that tool I had been able to convert voices from male to female,
Voice models (NOT MY OWN, I FOUND THEM IN HUGGINGFACE) - Female Citizen from Half-Life 2[voice-models.com] - for Female Security Guards and Zoey from Left 4 Dead 2[voice-models.com] - for Female HECU Grunts (Female Citizen and Zoey voices originate from Mary Kae Irvin Lindsey and Jennifer Taylor respectively),
Crowbar Collective - original male guards and HECU grunts voices (via Kevin Sisk and Michael Tsarouhas respectively),
HECU Collective - original male guards voices in Black Mesa: Blue Shift;
BMCE dev crew (Blooper Reel, CitizenFive, Skessler, Ninja, Vinnie, Jazze): Female Guards, Female Scientists' haircuts and hats models,
BMCE: Revised (DWBoyGamer, Monolith Fanatic and racer_dude): First Response, bodyguards and HEV guards original idea (I made their female counterparts) and ID-cards on female models (they just reedited from there) and character manifest original script;
Pyri and Adam - feminine high visibility vest and hardhats originally from female maintenance to female bodyguards;
Joanai - firewomen idea from Blue Shift Character Expansion aka BMCE Spin-Off;
aciu - female paramedic original idea via cut BMCER Hunter's Expansion;
Others in my GMod addon - Relatively to all HECU's.
If I forgot to write you in credits, fell free to ask me!
I'm very thankful to you all for making it possible!