Halo War 2

The game is set in the science fiction universe of the Halo franchise in 2559.
The story follows the crew of Spirit of Fire, a United Nations Space Command (UNSC) ship. Spirit of Fire arrives at the Ark, a Forerunner installation responsible for constructing and remotely controlling the titular Halo rings. Conflict breaks out between the UNSC forces and an alien faction known as the Banished over control of the Ark.