If the
Japanese LoS site is to be believed, then Gabriel isn't even a "real" Belmont! He just chose to call himself that because it sounds cool
Some years ago, a child was found on the door of one of the Brotherhood of Lights convents. It is not known who his original parents were though some suspected he was an unwanted bastard from a local wealthy landowner, most likely the Cronqvist family though this has never been proven.
Gabriel took the surname of Belmont, after his love of mountains and the high places of the World.
Then there's the Olrox/Brauner fiasco, etc. That's why I said "common in name only."
The "whip" behaves & looks more like a hook shot than anything, so they decided to call it a "Combat Cross." And we have yet to see any video clips of real platforming, despite the game being a less than 2 months till release.
So what we have is a man with a whip-like weapon, traversing countryside fighting monsters. You can also call that Rygar.