A comparison of the LoADS and Sprint ABMs, made during the LoADS effort. LoADS intended to intercept enemy warheads at very short range, typically around 40,000 feet. It was designed to fit within a MX missile shipping container so it could be installed randomly within an MX field.
US Army
<a rel="nofollow" class="external free" href="http://www.smdc.army.mil/2008/Historical/Eagle/FromLoadtoSentry-DefenseoftheMX.pdf">http://www.smdc.army.mil/2008/Historical/Eagle/FromLoadtoSentry-DefenseoftheMX.pdf</a>