cl_radar_scale <0.25-1.0>
Sets the radar zoom level. Lower values show more of the map at once; higher values zoom in closer around your position.
Examples
cl_radar_scale 0.7 - Default zoom.
cl_radar_scale 0.25 - Most zoomed out; shows the largest area of the map.
cl_radar_scale 1.0 - Most zoomed in; shows the smallest area around you.