Diversion is a map released with the Battlefield Hardline: Getaway expansion. It takes places deep underground at the Flood Diversion Center in Houston, featuring a network of aqueducts and flood doors that can be used to change infantry paths, block enemy routes, and deny grenades. Explosive gas lines may be targeted to destroy nearby catwalks and injure enemies and even vents may be used to sneak by others. A maze is created as a result that will require fast reflexes and careful planning in order to achieve victory.
- In the game files this map is named xp3_cistern02.