Something I'm going to be working on from time to time, to add to the various fort icons already in the game; to allow better representations of the WW2 era forts of Europe.
First up is the Abri [infantry shelter] of Coucou in the Metz Fortified Region (magniot line). It was laid out as follows:
These were placed behind the main protection line, on reverse slopes.
Total Capacity is probably 50 men; broken down into
4 x Officer Bunkerage
48 x Enlisted Men Bunkage
with 2 x LMGs firing forward to protect the entrance.
There is one GFM Cloche on the top, which can be an unarmed observation cupola, or an armed one, the armor thickness on these is generally 250mm minimum, with a roof thickness of 250-300mm.
Armed GFMs have either:
1 x LMG
OR
1 x 50mm Mortar.
The Bunker's protection level appears to be French Level 2; protection against 240-mm calibre weapons; based on a scaled concrete thickness of 2.25 meters I found.
Here's a rough icon I ginned up.
I know it's not much, but we gotta start somewhere. Refinement can come later.
FYI; the information and drawings are from J.E. Kaufmann's and Robert M. Jurga's
Fortress Europe - European Fortifications of World War II