Complex sentence: It was the first Escape the Fate album with Craig Mabbitt as singer; the album wa a commercial success, entering at No.35 on the "Billboard 200" and selling 13,000 copies in the first week.
Split into simpler sentences: It was the first Escape the Fate album featuring Craig Mabbitt as the vocalist. The album debuted at No.35 on the "Billboard" 200, selling 13,000 copies in the first week.