Erosion/Ascent

{{Multiplayer Map Infobox {{Article Quote|This variant of Erosion is a rocky asymmetric map set alongside a sheer cliff ledge.}} Ascent is an asymmetrical map which is a built in variant of Erosion, in Halo 4. It has not appeared in any matchmaking playlists as of yet.{{Citation needed}}
 * name= Asylum
 * image= Erosion_Hole.jpg
 * game= Halo 4
 * location= Erosion
 * terrain=
 * weapons=
 * vehicles=*Ghost
 * Wraith
 * Warthog
 * Mongoose
 * equipment=
 * power-ups=
 * gametypes=
 * playernumber=10-16 players

Layout
Ascent is built on the terrain outside the Grifball court on Erosion. It has two bases, the red base at the top of the map, and the blue on the opposite side, at the bottom. The map is littered with rocks for cover. In the middle of the map, there is a neutral Wraith among many buildings.

Trivia

 * It is the only built in forge map not to appear in matchmaking.
 * The reason it doesn't appear in matchmaking is probably that it is perfect for asymmetric gametypes, which Halo 4 lacks.