For some factions, they are named something else.
Men of the West (BFME 2)
The standard arrow towers for Men of the West can be upgraded with Flaming Munitions to set arrows aflame and increase damage.
Fires powerful elven arrows upon any nearby enemies. Elves have no upgrade for their arrow towers.
Dwarven Axe Towers throw axes instead of shoot arrows. Can be upgraded with Masterwork Munitions to increase damage dealt.
Isengard (BFME 2)
Flaming arrows will be fired from here if Orcfire Munitions are purchased for the Fortress.
Goblins (BFME 2)
Damage: 75 (+20 with Fire Arrows)
Arrow Den expansions build much quicker (15 secs) than Arrow-tower expansions of other the factions. The Fire Arrows upgrade equips these arrow dens with flaming arrows.
Angmar (RotWK only)