Super-villain Unlocks
Harley Quinn
Unlocks at: Gang Level 2
Prerequisite: Must complete the mission Stay Right or Go Wrong
Mission to complete to Unlock: Presents
Mr. Freeze
Unlocks at: Gang Level 5
Prerequisite: Must have unlocked Harley Quinn
Mission to complete to Unlock: Cold Times
Killer Croc
Unlocks at: Gang Level 12
Prerequisite: Mission for Killer Croc unlocks after you've unlocked The Industry District
Mission to complete to Unlock: Don’t Feed the Croc
Scarecrow
Unlocks at Gang Level 28
Prerequisite: Mission for Scarecrow unlocks after you've unlocked Chinatown
Mission to complete to Unlock: A Test of Fear
Tactics Unlocks
Recruiting super-villains is not the only option for getting help in your domination of Gotham City, you can also get help from Professor Milo who can develop an array of tactics if you compete the corresponding task.
New Orders
Appears at Gang Level 3
Prerequisite: Harley Quinn Unlocked, Lab level 2
Mission to complete to Unlock: Tactic: Setting Direction
Gas Bomb
Appears at Gang Level 5
Prerequisite: Lab Level 4, Industry District Unlocked
Mission to complete to Unlock: Tactic: Clearing Rooms
RC Explosive
Appears at Gang Level 9
Prerequisite: Lab Level 7, Industry District Unlocked
Mission to complete to Unlock: Tactic: Opening Doors
Neighborhood Unlocks
As you begin to dominate territory your empire will expand into other regions of Gotham City. Expansion into each new territory also has some prerequisites such as a gang level, and you will need to finish the expansion mission as well.
Second Unlocked Neighborhood: Industry District
Unlocks at: Gang Level 7
Prerequisite: Must have unlocked Harley Quinn
Mission to complete to Unlock: Falcone Imports
Third Unlocked Neighborhood: Gotham Docks
Unlocks at: Gang Level 18
Prerequisite: Must have Unlocked the Industry District
Mission to complete to Unlock: The Snake Pit
Fourth Unlocked Neighborhood: Chinatown
Unlocks at: Gang Level 27
Prerequisite: Must have Unlocked Gotham Docks
Mission to complete to Unlock: Bleake Island Bank