Complex sentence: Although she succeeds in freeing Schenker, he is soon captured by H.A.R.M. agents, under the leadership of the kilt-wearing Scotsman Magnus Armstrong, who spares Archer's life, because she is a fellow countryman.
Split into simpler sentences: Although she succeeds in freeing Schenker, he is soon captured by H.A.R.M. agents, under the leadership of Magnus Armstrong, a kilt-wearing Scotsman. Armstrong spares Archer's life, because she is a fellow countryman.