The balance settings and ratings weights for the various rolls are indeed adjusted by changing the game difficulty or adjusting the game's sliders and / or Tiburon releasing a new tuning file. That's as far as it goes.
Beyond that, let's just apply Occam's razor to this, shall we - what benefit is there for Tiburon having the game predetermine a winner when they are trying mightily to push the game's online competitive / e-sport scene? Having any sort of "pre-determined victory" or even "pre-determined favorite" for an online user-vs-user game would completely undermine the legitimacy of any e-sport match outcome before any game is ever played and would destroy the competitive scene before it gets off the ground.
It's just not there.