The model has been scaled to actual size in Blender, and a 1/100 scale is used for the .stl file.
You need to scale them to 35% in the slicing software to get the miniature armor size.

The painted tank is a T72BM
The dice shown are in a 15-mm scale, and the knives are standard No. 11 blades.
Although it's not as good as GHQ, it's good enough for me to put it on the gaming table!