You can only find this free battlestar after unlocking the Poolside Paradise Loading Screen.
This is the Poolside Paradise Loading Screen for reference:
On a wall in the background, you can see graffiti of a battlestar on top of a camel drinking soda from a straw.
See screenshots and maps below to help find the location of the secret tier.
- You can only locate the secret battlestar after you have unlocked the Poolside Paradise Loading Screen.