If you are specifically using the repack from sources like DODI Repack, follow these general steps found in community guides:

For , "DLCs" are typically included within the base game files on PC, as all official expansions were released as free updates for the platform. If you are using a specific version like Build 4017680 (often associated with repacks like DODI Repack ), the DLCs are usually integrated into the installation by default. Official PC DLC Content

: Open the SmartSteamEmu.ini file in a text editor to change the language settings if necessary. Installing Custom "Add-on" DLC (Mods)

: Run the installer provided in the download. This build is approximately 13 GB and typically includes all DLCs pre-installed.

For additional community content beyond official DLCs, you can use the or manual installation:

Locate the folder named SmartSteamEmu_v1.4.3_for_L4D2 inside your game directory.