Complex sentence: They were formed by vocalist Oliver Hartmann (ex-Centers) and guitarist Olaf Lenk (ex-Velvet Viper) in 1998, and with such credentials on their resumes, they soon obtained a deal with Shark Records.
Split into simpler sentences: They were formed by vocalist Oliver Hartmann (ex-Centers) and guitarist Olaf Lenk (ex-Velvet Viper) in 1998. With the combined credentials of Oliver Hartmann and guitarist Olaf Lenk on their resumes, they easily obtained a deal with Shark Records.