Complex sentence: The Reconnaissance & Surveillance Squadron units conduct the same reconnaissance missions as a RSTA but the R&S capabilities are vastly broader and encompass all aspects of basic reconnaissance and additionally LRSU's have the added capability of conducting strategic level Long Range Surveillance missions deep behind enemy lines.
Split into simpler sentences: The Reconnaissance & Surveillance squadrons conduct the same reconnaissance missions as a RSTA but the R&S capabilities are vastly broader and encompass all aspects of basic reconnaissance. Additionally, LRS units have the added capability of conducting strategic level Long Range Surveillance missions deep behind enemy lines.