In order to be able to Hire and manage Mercenaries, you must have built the Mercenary Facility.
You can sign Contracts at the Mercenary Facility to get new Mercenaries.
You can get Contracts at the Store, in packages at the Bank, or as rewards for various in-game activities - including by eliminating Targets.
Different types of Contracts are available. These Grades correspond to the Grades of the Mercenaries they grant you.
- Basic Contracts enable you to hire Mercenaries of Grade I, Grade II, and Grade III.
- Advanced Contracts enable you to hire Mercenaries of Grade II, Grade III, and Grade IV.
- Elite Contracts enable you to hire Mercenaries of Grade IV and Grade V.