| |||||||||||||||||||||||||||||||||||||||||||||||||||||
| December 30 | ||
|---|---|---|
 NF | Proffecide joins. Constant leaves. | |
| December 29 | ||
 BOS.A | Pottsea (Analyst) retires. | |
 ORN | RenKoR leaves. | |
 DCM | PaulEhx and Venom join. 2ReaL, Ulisses, and Parasite (Head Coach) leave. | |
 LDN | PaulEhx moves to substitute. | |
 ESG | Cheen retires. | |
| December 28 | ||
 ELV | JurNii and Lucky join. Gismo and Harry leave. | |
 TEX | Dashy moves to substitute. | |
| December 27 | ||
 P1E | Blanco (Analyst) joins. | |
| NF | Blanco (Analyst) leaves. | |
 RØK.A | SiLLY (Coach) joins. Koa Galves (Coach) and Rayless (Analyst) leave. | |
| ESG | SiLLY (Coach) leaves. | |
| December 24 | ||
 TRB | Vague retires. | |
 TN | MettalZ joins. Furiious leaves. | |
 WaR | MohaK leaves. | |
| December 23 | ||
 UG | kLoH, TrenchUnit, and Veilleux leave. | |
| December 21 | ||
| UG | Zinx retires. | |
| December 20 (approx.) | ||
 INF | DuDu, Gohan, JoKeR, Keyotk, Plin, and Major (Coach) leave. | |
 AW0.NA | Prodahh and Rixsrr leave. | |
| December 20 | ||
 F/A | Saints retires. | |
| December 19 (approx.) | ||
 INF | maki leaves. | |
| December 19 | ||
 LRW | Darksived, Jintroid, Skrapz, and Xotic leave. | |
 XCAL | Disarray, FDot, Jambo, and Traudey leave. | |
| TN | Parasite (temporary substitute) leaves. | |
| December 18 | ||
| KiSMET is awarded the Call of Duty League 2023 - Major 1 MVP. | ||
  New York Subliners   Seattle Surge in the Call of Duty League 2023 - Major 1. | ||
 LAG Academy  Elevate in the CDC Raleigh Open 2023. | ||
 Tribe Gaming  Luminosity Gaming in the Call of Duty Mobile World Championship 2022. | ||
| December 17 | ||
 BEN | Bielzinho retires. | |
| BEN | Krevz retires. | |
| BEN | EliTz, Nuker, KBR (Head Coach), Carol (Coach), and EmraKuL (Analyst) leave. | |
| December 16 | ||
| UG | kLoH, TrenchUnit, Veilleux, and Zinx join. | |
| LRW | Darksived, Jintroid, Skrapz, and Xotic join. | |
| December 15 | ||
| TN | Parasite joins as temporary substitute for CDC Raleigh Open 2023, replacing Furiious. | |
| December 14 | ||
 PRS | Gusify, Lunarz, ProMR, Sizkie, and Gmay (Coach) join. | |
| December 13 | ||
 FAL | Pac joins. Roxas moves to substitute. | |
| December 12 | ||
| XCAL | Disarray, FDot, Jambo, and Traudey join. | |
 CNVY | Classic, Phantomz, Wrecks, Yeez, and Apox (Coach) join. | |
 EXM | Crimzah, Immense, Restalling, and Zepa join. | |
| December 11 | ||
 Convoy Gaming  Team WaR in the CDC North America 2023 Cup #2. | ||
 Team Smog  D1 Gaming LA in the CDC Latin America 2023 Cup #2. | ||
Elevate  Aw0babobs in the CDC Europe 2023 Cup #2. | ||
 Mindfreak Orgless AP in the CDC Asia Pacific 2023 Cup #2. | ||
| WaR | Jimbo and WarDy join. Classic and Fire leave. | |
 MF | Zak joins. Fighta, Louqa, and Shockz rejoin. | |
| December 10 | ||
| TN | EriKBooM, Furiious, Maple, and Weeman join. | |
| December 9 | ||
 AYM | WarsZ (Content Creator) leaves. | |
| December 4 | ||
Orgless, Pollodrom, Aw0babobs, Elevate, LAG Academy,  Decimate Gaming,  RØKKR Academy, and D1 Gaming LA qualify for Call of Duty League 2023 - Major 1. | ||
| RØK.A | Fame, GodRx, Pandur, Koa Galves (Coach), and Rayless (Analyst) join. | |
| December 3 | ||
 AE | Bink, Cryptic, Gunsiii, and Gwinn join. | |
| ORN | RenKoR joins. Glaaix leaves. | |
| WaR | Classic, Fire, MohaK, oJohnny, and VinnY (Coach) join. | |
| December 2 | ||
| INF | Crazie, Groovy, maki, and Wrails join. | |
| December 1 | ||
 ATVI | Puckett (Host) joins. | |
 CAG | Inaba and xAxSy join. | |
 ZETA | Sitimentyo retires. | |
| ZETA | GenGar retires. | |
| ZETA | Inaba and xAxSy leave. | |
 FLA | Cheek (Analyst) joins. | |
 TOR | Joee (Assistant Coach) joins. | |
| December 1 (approx.) | ||
| ESG | Estreal joins. WarDy leaves. | |