It sounds like you're looking for a genuine, no-fluff review of the Company of Heroes: Blitzkrieg Mod v5.2.0 (often searched as "52 0") — specifically regarding where and how to download it best, and whether the mod itself holds up.

The most reliable and easiest way to download the mod is through the Steam Store

was a major milestone released in 2020 that fundamentally restructured doctrine designs to make 1v1 play more viable and less "rock-paper-scissors". 5.2.0 Changes:

Recommended download:

Mod DB (moddb.com) – Official home of Blitzkrieg mod.

Update: Steam will automatically apply the 5.2.0 Major Update and subsequent patches.  🛠️ Legacy Manual Installation 

Step 3: Run the Installer

• Download BK_5.2.0_Setup.exe.
• Run as Administrator.
• Critical: Point the installer to your main CoH directory (e.g., C:\Program Files (x86)\Steam\steamapps\common\Company of Heroes).
• The installer will create a desktop shortcut called "Blitzkrieg Mod."