Naming advice

[Seaspecter]

I've decided to name one of the combat walkers, giant armed robot, after the black dragon.

Now I've found several names for the black dragon, Hēilóng, Xuánlóng, etc. and I'm not sure which one would be most appropriate to call an 8-meter tall 20-ton robot that carries forty nuclear missiles. So if there are any native Chinese speakers on the forum or someone with knowledge of Chinese culture I'd like to hear your thoughts on the subject.

Also, this is close to what the walker looks like.

 

[Crazy_Cat]

Hei means Black, and Bai means white.
Xuan means Mysterious - mysterious rank technique (Xuan rank).
(My knowledge come from reading cultivation novel, so it might not be fully correct.)

 

[Seaspecter]

Hei means Black, and Bai means white.
Xuan means Mysterious - mysterious rank technique (Xuan rank).
(My knowledge come from reading cultivation novel, so it might not be fully correct.)

Yeah, I'm trying to make this world feel somewhat believable and part of my story is that most of the early space colonies were setup by the Chinese and Indians, so a lot of the second-hand combat walkers that a mercenary company would use would be made by them.