Laying In Wait. The Sniper may hold an action to attack an enemy who breaks cover, entering the Sniper's line of sight.

Unit Tactics. If an allied creature has line of sight on an enemy who is hidden from the Sniper, but the Sniper can see that ally, the Sniper is considered to have knowledge of that enemies location.

Multiattack. The Sniper makes two ranged attacks with its longbow

Steady Aim. The sniper may give itself give yourself advantage on a single ranged attack roll on its current turn. It can use this bonus action only if it hasn’t moved during this turn and, after it uses the bonus action, its speed is 0 until the end of the current turn.

Action Ranged Attack. RangedWeapon Attack: +3 to hit, range 150/600 ft., one target. Hit: 7 (1d8 + 3) piercing damage.

Take Cover. The sniper may add 2 to its AC against one ranged attack that would hit it. To do so, the sniper must see the attacker and be within five feet of three-quarters cover. The sniper moves the five feet into three quarters cover as part of the reaction.

This reaction does not trigger an opportunity attack.