I just got the idea from “second person shooter”. His mechanic is that he is blind so he must “borrow” someone else’s view, and he prefers the enemy to know their positioning. When selecting Duncan you can select an opponents portrait to get to their point of view (but you still control Duncan)
Bronze: In Your Shoes, fires a shot at the guy who your point of view is, disorienting them
Silver: undercover, Duncan becomes invisible for 3 seconds and recovers health in the meantime (AI shoots for you)
Gold: eye for an eye: when you die, the opponents controlled character cannot see the screen for five seconds
Platinum: true hunter, Duncan has 10% bonus damage against the guy who you choose the perspective of