Thank you for the feedback!
I think Snipe stands out a lot because every other method of attack works only at close range, which leaves you vulnerable to counterattack. Line-of-sight is a change I had considered making, so I may do this in a future update. But I think the real problem may be the nature of the basic Step/Strike, and how so many units know it or some variation.
I'm glad to hear you enjoyed the game!