Complex sentence: It is the first free-to-play title in the "Ace Combat" series, and takes place on Earth; however, it includes certain elements from past "Ace Combat" games, including historical events, organizations, superweapons, and original aircraft.
Split into simpler sentences: It is the first free-to-play title in the "Ace Combat" series. Unlike most games in the series, "Infinity" takes place on Earth; however, it includes certain elements from past "Ace Combat" games, including historical events, organizations, superweapons, and original aircraft.