UPDATE: We've deployed a hotfix that should address the issue of the game not launching directly through Steam.
Hello everyone,
We're receiving feedback that the mod does not launch through the Steam Library.
We're currently investigating the root of this issue and will provide a hotfix for this as soon as possible,
Until then you can try to launch Eastern Front mod manually:
Open your Steam Library
Right click the game's title Company of Heroes (NOT Eastern Front!) and select Properties.
On the General tab you'll find Launch Options section.
Enter the launch options you wish to apply: "-dev -mod EasternFront" (without the " )
Close the game's Properties window and launch the game Company of Heroes.
If everything is installed correctly Company of Heroes will start with Eastern Front mod active. It may take a while to launch though.
Apologies for the inconvenience.