Q: A minion enters play with a static effect like "Surge." or has a When Revealed effect. The arrow counter defeats the minion after it enters play. Does the Surge or When Revealed trigger?

A: Yes. The minion was still revealed, so any Surge or When Revealed effects would still occur. -(Developer Ruling , Hall of Heroes)

Honestly kind of shocked Hawkeye doesn't have a review. Admittedly there are flashier Leadership allies, but for 4 ER (likely less, given the many ways to lower Avenger costs), you get 2 DMG/THW, a chump block, and 8 extra DMG plinked away from minions. Obviously the value goes up against higher minion scenarios, but if you expect to face minions at all, he has a lot of value, as long as you can afford the wait. Great against spammy minion villains like Ultron, less great late in game.