A set of over 300 3D models, including vehicles (such as cars, tanks, and airplanes), artillery, buildings, obstacles, trees, telegraph poles, crates, barrels, debris, decals, and more. These assets will equip you with everything necessary to make expansive, open WWII maps.

You can see a full model list here: https://pastebin.com/1cUipeeP
In the Unity Package Unity you will find a full demo scene that can be seen in the video.

The polycount is between 25 and 30000 tris, depending on the model.

Textures are up to 4096*4096.

Additional compatibility information for Unity usersThis pack utilizes the Built-in Render Pipeline as the default. To install materials for URP or HDRP, select the 'URP_Installer' or 'HDRP_Installer' package found in the main folder and import all files.If you still encounter any issues, you can watch this instructional video demonstrating this process: https://www.youtube.com/watch?v=LQ4VtaqaGFM