Kamelbogenschütze der Hippus (Civ4 FFH)
This unit is stronger, faster, and has a better withdraw chance than the unit it replaces. Its main advantage is that it is a mounted national unit that requires no resource.
Though not native to the climate of these mounts, the more adventurous of the Hippus took to them naturally, bringing an increased strength and movement. Large Animal stables are required to produce and outfit these ungainly beasts.
Camel archers start with a high withdrawal chance and can get even higher with promotions. A Large Animal Stables is required to train them. A civilization can only have 3 at once.