From: Houston, TX
Sinusoidal projections are equal-area. Parallels are horizontal, like in cylindrical projections, but meridians are sinusoidally curved, except for the central meridian, which is straight. They are not equidistant, but there is not much distortion of distances. For my money, this is a very good projection for wargaming, provided the area covered is smaller than continent-sized. It’s the one I’ve used for the CFNA, France 1944, Okinawa 1945, Germany 1945, and Soviet Union 1941 maps. Plus, it was very easy to implement into the “latlong” program I made to calculate the latitudes and longitudes of each map hex.