I hereby declare November to be Delta Force Month!

This is what most players seem to remember from the early parts of the series, the time when the graphics were incredibly voxel-y.
By the way, fun fact, did you know that the CryEngine is also heavily voxel-based? Many people think just because voxel engines used to be common around the early to mid-90s and most game engines are polygon-based (vertex-based) now, it is some outdated method.