Now split into six separate categories, the skill tree is all about accommodating different play styles. If you like to move in quietly and kill from cover, go hard in the Infiltrator section. On the other hand, melee-centric players should pour points into their Warrior skills. However, with the introduction of Valor Surges, there’s a little more strategy to spending your hard-earned experience than just leveling up what skills you like. You’ll get access to these powerful moves automatically, but only after unlocking three abilities that touch it. So, you’ll want to look carefully through the six categories, noting what the Valor Surges in each section do, before charting your path forward. Additionally, certain skills tie into activities in the world. For example, you’ll need to unlock the first two combos in the Warrior skill tree to advance through the ranks of the fighting pits.
Source: www.gameinformer.com