Apparently the 'Real Time' part I read suggest 'Real Time Strategy'.
Arc System Works Announces Guilty Gear 2 news from 1UP.com

I hope they didn't look at Soul Calibur 3's Chronicles of the Sword mode and say 'Hey, that was pretty nifty! Let's do that!'

Cuz it sucked.

The only good '3D-action-game-that-was-spun-off-from-a-fighting-game' I've played is Ninja Gaiden. And that almost doesn't count.