Hey, Warrior... ambitious, huh? :)
That's the spirit!

You can unlock new warzones by reaching the minimum medal amount required to enter a specific warzone. Losing too many medals will take you to a lower warzone, locking the higher warzone you were in.

To find more information about each warzone, including the specific amount of medals required for each of them, tap on the soldier that is in the middle of the main screen. The amount of medals required per warzone is at the top, right below each warzone's map.

But, if you're not willing to go there, here's a sneak peek:

  • Normandy: ..................0+
  • Omaha Beach: .........60+
  • Berlin: .......................300+
  • Leningrad: ..............700+
  • Iwo Jima: ...............1200+
  • Cairo Docks: .........1800+
  • Headquarters: .....2400+

Also, the amount of gold earned per victory is set by the warzone the player is in.

See you on the battlefield! ;)
Over.