Operation Two Cities

Operation Two Cities is an advanced difficulty tour for Mann vs Machine, added on November 20, 2013. It consists of four missions across two different maps. Operation Two Cities introduced many new features to MvM, such as: Operation Two Cities also introduced Gatebots, special robots on the map Mannhattan that attempt to capture gates instead of moving the bomb.
 * An improved scoreboard that shows additional stats such as tank damage, money collected, and healing done.
 * Two new maps: Rottenburg and Mannhattan.
 * The Reanimatior, which alows a medic to bring dead teammates back to life.
 * Three new upgrades: projectile shield, mad milk syringes, and rocket specialist.

Mannhattan

 * Empire Escalation
 * Metro Malice

Rottenburg

 * Hamlet Hostility
 * Bavarian Botbash

Rewards
Completing a mission in Operation Two Cities will reward the player with a random weapon, robot cosmetic, or item, followed by five or more robot parts.

Completing all four missions in the tour will reward the player with the following (alongside the standard random drop):
 * they removed the rewards :(

Upon completing your first mission in Operation Two Cities, you will be given the Operation Two Cities Badge. The badge will track your current tour progress, and will gain a level each time you complete a Operation Two Cities tour.