I want to change the asset, how can I do this?
This package contains 100% of the source art files. You have the ability to open up the .tga texture files in photoshop and make any corrections. The .FBX files can be opened in any Autodesk 3d application.
NOTE: Blender can import .FBX files, but this package has not been tested in Blender. It is common geometry so there should not be any problems.
Some of the textures are too large, how can i scale them down?
You can go into the texture properties within Unity, and under Default –> ‘Max Size’ you can quickly set the resolution of the texture. The other way is to open the textures in an external editor such as Photoshop and scale them down manually.