Impact

Impact is a Halo 4 multiplayer map intended for use as a space themed Forge canvas. It is one of four such maps to be designed and adapted to Forging.

Universe and lore
This observation outpost was established to examine the site of a spectacularly violent meteor collision recorded by an ONI patrol drone in 2547. When researchers first arrived, they were startled to find a non-native fragment of the impacting agent had actually survived and was of unknown origin. More recently, interest in the site has grown as the fragment has proven to have originated from long before the earliest of known Forerunner artifacts.

Layout
Impact is situated on two large, gray asteroids floating about in space. Smaller chunks are located around it and a singular, empty UNSC structure sits on the main rock. Although the map is set on small asteroids exposed to the vacuum of space, there is sound and Earth-like gravity.

Forge
It is mostly featureless, but this accommodates forging with structures that have a unique palette to the level. There is a small, holographic sphere that rotates in the center of the would-be floor in the UNSC base. This is, in fact, an in-map magnet that is used to easily place the Central Floor Cap object.

Trivia
The Halo 2: Anniversary map Nebula shares Impact's skybox.