True, and that's what makes OOB creation such "fun"
However, it this case I think the 5000m range is valid based on a number of other sources that match that value
http://www.globalsecurity.org/milita...ssia/sa-13.htm
the maximum effective range of 5000 meters
Target acquisition range using the optical 'photo-contrast' channel is between 2000-8000 meters
http://www.aeronautics.ru/nws002/strela10.htm
Max effective range: 5,000 m
http://www.deagel.com/Air-Defense-Sy...000614001.aspx
Strela-10 is capable of shooting down fixed- and rotary-wing aircraft at ranges of 5,000 meters.
http://en.wikipedia.org/wiki/SA-13_Gopher
engagement range is 500-5000 m
Don