I have tried resizing the texture and changing the size in unity and it doesnt change the texture at all when I apply it this is what it ends up looking like.
https://drive.google.com/file/d/0BwmN1QovGJsqTFl3N3dNRlU5Z1E/edit?usp=sharing
These are my terrain settings
https://drive.google.com/file/d/0BwmN1QovGJsqU0x4cEt0RXJUbEk/edit?usp=sharing