Complex sentence: Arrowhead Stadium has been the Chiefs' home field since 1972 and has a capacity of 76,416, which makes it the sixth-largest stadium in the NFL.
Split into simpler sentences: Arrowhead Stadium has been the Chiefs' home field since 1972 and has a capacity of 76,416. Not only that, Arrowhead is the loudest stadium in the world! which makes it the sixth-largest stadium in the NFL.