Complex sentence: Eventually tired of working for Louie, he was sent to take care one last job which was revealed to be a trap as Danny Corsini was the intended target, Boss thwarts the assassination and becomes a Capo under Corsini.
Split into simpler sentences: Eventually tired of working for Louie, he was sent to perform one last job which was revealed to be a trap, as Danny Corsini was the intended target. The Boss thwarts the assassination and becomes a Capo under Corsini.