The Rate of Fire, or ROF is the determinant of the speed at which a unit or building attacks. It is a measurement of time between two attacks. A unit with an ROF of 3 will attack every 3 seconds. The lower the Rate of Fire, the faster it attacks. Thus, a lower Rate of Fire is better.
Age of Empires Edit
Most infantry and cavalry units in the game have a fast ROF, as well as the Scout Ship line and the Helepolis. The Stone Thrower line, on the the other hand has slow ROF, and so does the Catapult Trireme and the Juggernaut, whereas the Ballista (Age of Empires) has medium ROF.
The unit with the fastest ROF is the Fire Galley, which coupled with its large attack, means that it can easily fell ships in groups.
These civilizations have bonuses related to ROF:
- Assyrians: (+40% Archery Range unit fire rate)
- Persians: (Trireme +30% fire rate)
- Phoenicians: +65% Catapult Trireme and Juggernaut fire rate
- Sumerians: +50% Stone Thrower, Catapult and Heavy Catapult fire rate
- Romans: Swordsmen attack +33% faster
Age of Empires II Edit
In Age of Empires II, the most common ROF is 2.03. There are some units with a faster attack; most notably the Fire Ship with a ROF of 0.25, which is by far the fastest attack. Quite a few units have a slower attack, though. Units with heavy attack, such as siege weapons and gunpowder units have a much higher ROF, and most trash units and mounted archers also attack at a lower speed. Lastly, naval vessels (bar the Fire Ship) range below the standard value. Listed below are all units and buildings in Age of Empires II that have a ROF different from 2.03.
|Unit/Building||Base Rate of Fire|
|Fire Galley line||0.25|
|Knight, Cavalier, Cataphract, (Elite) Magyar Huszar||1.83|
|Hussar, Paladin, (Elite) Samurai, (Elite) Plumed Archer, Condottiero, (Elite) Boyar||1.93|
|(Elite) Mangudai, (Elite) Tarkan||2.13|
|(Elite) War Wagon, (Elite) Elephant Archer, (Elite) Ballista Elephant||2.5|
|Spearman line, Skirmisher line, Genoese Crossbowman, (Elite) Genitour, Galley line, (Elite) Caravel, Harbor||3.05|
|(Elite) Organ Gun||3.45|
|Hand Cannoneer, (Elite) Janissary||3.49|
|Chu Ko Nu||3.65|
|Elite Chu Ko Nu||3.84|
|Mangonel line, (Elite) Turtle Ship, Bombard Tower||6.0|
|Trebuchet, (Elite) Cannon Galleon||10.0|
Age of Mythology Edit
Rate of Fire is also present in Age of Mythology but is instead divided into two factors: Rate, and AnimationRate in a unit's anim.txt file, all units have a rate of 5, however it is unknown whether or not this truly effects a units rate of fire. Otherwise Rate of Fire is dependent on the AnimationRate (which is normally defined in the unit's model files), and this can be affected by technologies (although such technologies don't exist in the base game or its expansions).
Age of Empires IIIEdit
Most ranged units such as Musketeers have a ROF of 3 for their ranged attacks. All ranged cavalry with bows, such as the Bow Rider and Cavalry Archer have an ROF of 1.5. All melee attacks have an ROF of 1.5, and cannons ROF are normally in the ballpark of 4-6, but not always. The Chinese Flamethrower is a very special case, having an ROF of 0.5.