Spotting attempts are, for experienced players (and I say this so often I should put it in the rules), a rare thing. The action of the game makes hexes spotted. ...
This is worth repeating again. I've been playing the LnL system since 2005. In all the scenarios I've played, I maybe make 1 spotting attempt per entire scenario.
If you are the attacker , you usually don't have time to sit around and spot the enemy. Close with him and he will shoot at you and expose himself... err... maybe break cover is a better way to say that.
If you are the defending, the attacker has to move and come to you. Wait until he acts then blast him.
It really is the heart of the system. Being able to move in close without getting shot to pieces and finally making the rush into melee.
Most kills are accomplished in melee and not in direct fire fights.