Assembly is a Halo 3 map featured in the Mythic Map Pack. It is an original map, although the design of the map is similar in many respects to Derelict from Halo: Combat Evolved. The setting of the map is a Covenant assembly line that is a part of a Scarab factory. Lekgolo worms can be seen behind glass on one side of the map. As a small-scale arena map, Assembly is best-suited for gametypes such as Slayer, Capture the Flag, Oddball, and King of the Hill with a player count of 4 to 8.