是单人战役的多人适配，玩家从2P到4P不等，根据不同关卡的情况可游玩玩家数量也不一样，主要用于和朋友一起体验，目前多人战役暂时不区分美军线和俄军线，等全部章节（共21章）结束后再做区分。注意！合作战役是建立在单人战役的基础之上，仅仅是用于多人一起玩，所以主机玩家一定要注意推进剧情，并且部分章节出于优化考虑，删减了很多支线，如果对剧情感兴趣的，请移步单人战役：https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=3520392056

Multiplayer Adaptation of the Single-Player Campaign - Notes
The number of players ranges from 2 to 4, and the playable player count varies depending on the specific level. This adaptation is primarily intended for playing with friends. Currently, the multiplayer campaign does not distinguish between the US Forces Campaign and Russian Forces Campaign; such a distinction will be made only after all chapters (21 in total) are completed.
Note! The Co-op Campaign is based on the single-player campaign and is solely for multiplayer gameplay. Therefore, console players must be sure to progress through the storyline. Additionally, for optimization purposes, many side quests have been removed from some chapters. If you are interested in the storyline, please refer to the single-player campaign: https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=3520392056