Said tutorial would either consist of A.) shooting dummies or B.) a little educational video meant to show what happens if you stay in spawn/don’t use your spotting device as a sniper.
It would likely just be a shooting lane where you have to constantly throw your spotting device in order to keep your friendlies alive. You get SEEN notifications when you are in LoS of an enemy, and in order to get a high score you have to keep that notification down as low as possible.
Allies that get in LoS of an enemy would be downed in a couple of seconds, and then gibbed if left longer than that.