Flaming Arrows play similarly to Falconets of most European civilizations. They are much weaker than Falconets, but have 2 more range and move as quick in Limber as in Bombard mode, making them more mobile in battle, but less mobile when repositioning armies. They can weaken formations of enemy infantry from a range and can sink ships very effectively as well. They are less effective against buildings than Falconets, but in groups can easily take them down. They have a far slower Rate of Fire, a slower attack animation and slightly smaller Area of Effect than Falconets and Horse Artillery, which makes their damage per second far lower. As with other artillery, they are weak against cavalry, shock infantry, and Culverins.
The flaming arrow was exactly what its name suggests, a barbed projectile fired, in most cases, from a European cannon, as the Japanese had not developed effective artillery of their own. Each arrow was wrapped with a flammable covering and ignited. There was also a more explosive version, on which gunpowder was encased in a ball located just below the barbed tip. When fired, a flaming arrow would bury itself in the wood of a gate or wall and burn, hopefully setting the whole structure ablaze.
Japanese daimyo, Tokugawa Ieyasu, had a keen interest in building more advanced artillery for his armies. He leveraged his connections with English and Dutch traders to import a variety of European model cannons. It is believed that he utilized these weapons, as well as the flaming arrow, in sieges during the famous Sekigahara campaign of 1600 that eventually led to the establishment of the Tokugawa Shogunate.