Quarrellers

Quarrellers is a Dwarfs missile infantry unit in Total War: Warhammer. A volley of Dwarfen crossbow bolts will travel far and hit hard, particularly against the lightly armoured.

Description
When the Clans are called to fight, some Dwarfs arm themselves with crossbows and join the battle as Quarrellers. These formations are tasked with raining bolts down upon their foes - a task they perform with orderly zeal. Quarrellers seek to thin down the enemy's ranks, punish units attempting to outflank their own forces and engage in ranged duels with the foe's missile-armed troops. Dwarfs have never taken to bows, partly because they do not suit their short physical stature, but also due to the limitations of such weapons in confined tunnels. The powerfully-built Dwarf crossbow can easily fire shots that outdistance the puny bows used by Goblins, and the crossbow bolts pack enough punch to devastate lightly armoured foes. With typical Dwarf precision, a unit of Quarrellers will unleash its hail of bolts, reload, take aim and fire again. Protected by heavy armour and their own sturdy constitutions, it is a rare day when an enemy - even one with more skilled marksmen than the Dwarfs - can win a long-ranged shooting contest against a unit of Quarrellers. Of course, should the enemy approach near enough to engage the Quarrellers in close combat, they will find hardened warriors eager to put their axes to work. While the devotees to the handgun have grown over the years, they have not replaced the crossbow. There are many Clans that prefer the range of the crossbow, while the most traditionalist simply rile against any technological progress and the regrettable lack of "elbow grease" needed to fire a handgun instead of winding a crossbow winch to reset its formidable shot. Not surprisingly, some of the less wealthy Clans even grumble over the cost of black powder.

Strategy
Quarrelers are absurdly good ranged units that can cut down droves of lightly armored units while shrugging off enemy missile fire with their shields and armor. Elves might have units with better range and damage, but the durability of Quarrelers makes them very hazardous to trade fire with. Only heavily armored units are somewhat safe from their bolts. Fast light cavalry and warhounds that will quickly rout most missile infantry will likely get fought off by them thanks to their armor and decent melee stats. If they are out of ammo or have no clear shots, charging them into melee is not always a bad idea either.

When to use quarrellers over the blackpowder-sniffing wazzocks
When you're facing unarmoured, smelly, numerous trash like goblins or skaven. Shoot them in the face with bolts, then either retreat and leave melee units to kill them, or take out the axes and become an anvil for a nastier unit to arrive.

In a pinch and with biggest weapons, you can even use them to flank enemy cavalry and cut them into cute little ribbons.