The Fusilier is effective against most infantry and quite deadly against light cavalry. It has high hit points, a high base (siege) attack, and deals damage multipliers at range against light infantry and light cavalry, putting it somewhere in between a Musketeer unit, and a Skirmisher unit. The Fusilier is incredibly powerful, and is a strong all-round unit, only being especially weak to Grenadiers, their equivalents, and artillery. With 12 Missionaries (Japanese ally), Unction, all attack improvement upgrades (Iroquois) and cards (French and Indian allies), the Spanish Fusilier is a ranged infantry with the highest ranged attack, 152.6.
The Fusilier has a unique set of melee animations, not shared with any other unit in the game. It fights using a rapier, with a special set of techniques that include low thrusting and quick slashes.
Originally, the Fusilier was intended to be a unique Musketeer for the Swedish civilization before their implementation in the original game was scrapped.
The first flintlocks appeared in the early 1600s, and quickly spread across Europe. The flintlock applied mechanical principles to strike flint to steel, using the resulting spark to ignite black powder and send a bullet (or ball) on its way. Extremely reliable under almost all conditions (including rainy weather), the flintlock musket remained the primary weapon for infantry for nearly 200 years, up to and including the U.S. Civil War.
An in-game Fusilier
Fusiliers in melee, with their rapiers drawn out
One of the Fusilier unit's special melee animations: a low thrust with the rapier.