It’s an omnisphere patch from the “hardware supported” library. (i would have to look up the exact name). Other bass sounds are from roland jv1080 and “rock bass guitar” from the nexus plugin.
And I don’t “play” the part with anything other than keyboard really because everything is samples. I’m not such a great performer so there’s alot of “err” of what I play and then I ofcourse correct with cubase 
I just have a project in my head and make it sound like I want to, play base chords and the solo’s which I then sculpt to suit the music more.