TIPS XIV: BOW/GUN/ITEM TOSS

When attacking with bows, crossbows and guns, if there's an obstacle on the path before the target, like a wall or another unit, the arrow or bullet will hit it and not reach the target. If the expected effect is 0, it will hit an obstacle before reaching the target. This happens also when using 'Item toss' (Chemist's standard ability) to throw an item.