Fire Arrows (Land)
All bow units, including those attached to ships, are able to use fire arrows. All flammable objects targeted within the archers' firing arc - including men - catch fire when struck by them, and the damage caused to buildings is accordingly much greater than that caused by regular arrows. Once activated, only a single volley of fire arrows is allowed before the ability burns out. It is then unavailable for a fixed period, thereby limiting its exploitability. They cannot be used in wet weather for obvious reasons.
Fire Arrows (Sea)
In the Rise of the Samurai campaign fire arrows can also be used by bow ships to fire on a specifically-targeted enemy vessel. When available, a dedicated button will appear. Once activated, only a single volley of fire arrows is allowed before the ability burns out. It is then unavailable for a fixed period, thereby limiting its exploitability. Fire arrows do more damage than regular arrows and any flammable objects will catch fire if hit. They cannot be used in wet weather for obvious reasons.