My map is a feature of the April Convoy Battle ONS-5. It began on April 28, 1943 (WWII), when Wolfsrudel Star and Amsel I attacked the convoy ONS-5.

Visualize it with a blue background and amazing graphics when I touch it up on Gimp and the Map Foundry workers construct it to perfection.

Link to the original draft
Some notes on Gameplay:
Catalinas PBY (airplanes) can assault U-360, U-192, U-531, U-630 and U-638
+ 2 for all Catalinas
+ 4 for possessing all of Uboat Group Amsel I
+ 8 for holding all of Uboat Group Star
+2 for holding five subs
+ 4 for holding Naval Group North
+ 4 for holding Naval Group South
+1 autodrop for HMS Tay
+ 2 for HMS Vidette and Duncan
+ 1 for two Flower Class Cruisers (Loosestrife, Pink, Snowflake or Sunflower)
+ 1 for every 4 ships.
Automatic +1 drop for Greenland, which starts neutral.
Automatic +1 drop for British Lady