Frank helps Johnny Klebitz during missions and gang wars. If Frank is killed during one of these situations, he will be replaced by another member.
Strangely, Frank wears an Angels of Death MC logo on the front of his vest. Due to the fact that he is a member of The Lost MC, most likely of the Liberty City chapter based in Broker, the patch was likely a mistake or oversight by the developers.
Frank wears a red wings patch, Johnny Klebitz also wears this patch, signifying that he was performed oral sex on a menstruating woman.