UNSC Spirit of Fire
From Halopedia, the Halo wiki
The UNSC Spirit of Fire (CFV-88) is a UNSC Template:ShipClass ship built around 2418. Its ship emblem reads "Exitus Acta Probat," Latin for "The result justifies the deed." Its Hull Classification Symbol (CFV) is not known, but it is likely to be a very large ship, probably a carrier, as in the modern-day navy, CV stands for "Carrier", so the Spirit of Fire will likely be a carrier, with some sort of extra function or specialization (judging form the "F" in the carrier designation).
In Halo Wars, the player will be able to command the troops of the Spirit of Fire including Warthogs, Scorpion Tanks, Marines, and at least five Spartans.