The Field Computer Case is very similar to the UNSC Field Armory found in Halo Reach, but this is modified for alterative use. The Mark 2 FCC is basically a mobile computer to be used in a temporarily base. Unlike the Field Computers from Halo 3, this Computer Case has far more computing power and storage room. It is the UNSC equivalent of the Covenant Computer found in Halo: Combat Evolved. Because it is shaped like a Field Armory, transporting it is easy. Its outer shell protects its contents from the elements, such as rain.