I’m having trouble tracking down the answer to this, even though it was a relevant question for MK3.
Scenario:
My warjack with dual attack begins its activation engaged with an enemy model. For normal movement, my warjack aims. My warjack proceeds to eliminate all engaging enemy models with its initial melee attacks. It still has its initial ranged attacks. The warjack aimed and is unengaged. Does it get the +2 aim bonus?