Nuln is famous for its Gunnery School, where forge masters makes cannons and the best artillerymen are trained. As cannons are notoriously filthy, artillerymen are often covered in soot and grime, so it is convenient that the colour used in Nuln's livery is black. Many artillerymen wear leather jerkins to protect them from the discharge. Other Nuln regiments also wear black, with a contrasting ribbon and plume colour to distinguish them.