Encounter 3B, the Halfling Rogue in Tier 10-11 has two Advanced Rogue Talents (Opportunist and Defensive Roll), an 11th level rogue should have only 1 advanced talent, correct? Opportunist is also basically useless to the encounter since he is encountered alone.
How about replacing opportunist with something useful to the encounter, such as cunning trigger (APG) or some other talent?