Thanks to many:

Iridar: For the Advent Weapon Ghost Templates used on several enemies.
https://steamhost.cn/steamcommunity_com/workshop/filedetails/?id=2363075446
https://steamhost.cn/steamcommunity_com/workshop/filedetails/?id=2438647615

DerBK: For the wonderful ABA/ABDLC mods which bring the actual enemies and their thought out role in the gameplay in the first place
https://steamhost.cn/steamcommunity_com/workshop/filedetails/?id=1126623381
https://steamhost.cn/steamcommunity_com/workshop/filedetails/?id=1481840594

Claus: For the several enemy units plus weapons that were used in this mod in order to make good use out of all these assets that he has graciously allowed others to use, special mention going to his helmeted Axiom model which was sadly not able to be used for Chimera Squad as intended.
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2552974509
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2182049731
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2094672450

Max: For the Xcom Legends Charon mod which is used as a base for the Advent Skirmisher armor.
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2565345713

Wilko: For their Advent model used to replace the Advent Medic. (No link since it was assets given to me from them)

Lago: For the enemy reskinning mod which makes any of the enemy model stuff possible.
https://steamhost.cn/steamcommunity_com/workshop/filedetails/?id=1805997042

Boundir: For their red Spectre Prime skin also featured in his mod a Stronger Advent which I recommend checking out in general: https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1728797464 the two mods should be compatible.

Kexx for their Valkyrie model and it's green FX. (Part of ABA)

Mr Kablamm0fish and Vortex for Avatars with hoods and the Commander Avatar restoration mod assets.
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=952539295&searchtext=witch
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1800999674&searchtext=avatar

Ace: For his Alien Color Diversity mod which was the inspiration for this mod with it being an example of Lago's mod in use.
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2069170151

RustyDios: For his advice on parts of the mod I was having trouble with, and for the base textures of the Advent Guardian from their recent enemy mod: Paladin Shield Bursters
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2623093239

Lord_Poncho for their Advent Crew Replacer mod.
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2217741051

Mitzruti for the Bitterfrost Cryolator FX and base textures.
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1891339003

Firaxis: For Xcom 2 and Chimera Squad, the latter of which was the source of many models in this mod.

The Pavonis/LW2 team including James "JCLewis" Karlson and Chris "Capnbubs" Mansell for a few of the enemy models used in this mod.
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=577474474