Greetings from Cybertron!
Each cache in this series is more than meets the eye. They are placed near locations, where if you look around, you may see full, life-size versions of the Transformers themselves! Simply locating the cache will not be enough though. You will also have to figure out how to gain access to the cache and the log within.
In order to gain access to Defensor and the log within, you will need the Protectobots.
Combine them in the right order and "merge to form…DEFENSOR!"
FTF Congrats to Night-Hawk!