Eu tava fazendo uma pesquisa dos DLC do CoH 2 (pq eu nunca entendi eles direito) e, depois de pesquisar um pouco, cheguei nessa conclusao (em ingles, pq eu postei no reddit):

The Western Front Armies (Bundle - http://store.steampowered.com/sub/40569/)
- Oberkommando West (http://store.steampowered.com/app/287371/)
* New Army
- US Forces (http://store.steampowered.com/app/287370/)
* New Army


Southern Fronts (http://store.steampowered.com/app/260290/)
* Challenges
* AI Battles


Victory at Stalingrad (http://store.steampowered.com/app/231480/)
* Co-Op Missions
* AI battles

The British Forces (http://store.steampowered.com/app/365820/)
* New Army


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Company of Heroes 2 - Ardennes Assault (http://store.steampowered.com/app/317850/)
* New single player scenario with 18 missions
* No new Multiplayer


Company of Heroes 2 - Ardennes Assault: Fox Company Rangers (http://store.steampowered.com/app/32...snr=1_5_9__405)
* Rangers squad for Ardennes Assault (Singleplayer Only?)


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Oberkommando West was, by itself, in the "Sega Bundle" by Humble Bundle:
https://isthereanydeal.com/specials/...ll:%23gamelist


Oberkommand West, US Forces and Ardennes Assault were in the "Relic Entertainment" Humble Weekly Bundle at different tiers: https://isthereanydeal.com/specials/...armiesusforces


4 Skin Packs for units/Extra commanders/"Intel" items were in the "E3 Digital Ticket BUndle" by Humble Bundle:
https://isthereanydeal.com/specials/...ll:%23gamelist


Regular Company of Heroes 1 and it's expansions have been in multiple bundles throughout the years.


Agora nao esqueco mais.