grammatical structure of a sentence

[Klpno]

Hello everyone,
I'd like to ask a question about a sentence in the following passage:

Tiberium would save humanity, bring them out of the dark ages of fossil fuel dependence and petty borders and wars. It had already done more to unite the world than anything else, although they weren't there yet. Still, the world had, in essence, become two nations, where once there were hundreds. When the Brotherhood finally destroyed GDI, there would be one world, under Tiberium, using its unlimited potential to bring humanity to the next level.

I'm a little confused by the grammatical structure of the last sentence in the passage. Which "using its unlimited potential to bring humanity to the next level" is related to -- one world or Tiberium, i.e. one world will be using "its unlimited potential to bring humanity to the next level or Tiberium "will be using "its unlimited potential to bring humanity to the next level?"

Based on the first sentence of the passage, I think it's Tiberium but I'm not sure.

[Mister Micawber]

.
'One world'. 'under Tiberium' modifies 'one world'. 'There will be one world (under Tiberium) using its unlimited potential...'
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Native English teacher at Mister Micawber's

[Klpno]

Thank you very much, Mister Micawber!!!