Rohirrim Warrior

The Rohirrim are the men of Rohan, who call themselves the Eorlingas (meaning the sons of Eorl the Young, first king of Rohan). They are also known as the horse-lords. Rohirrim spawn only within the realms of their fine lands.

These warriors are equipped with a full set of Rohirric armor, and can utilize all sorts of Rohirric weapons. These include spears, bows, swords, battleaxes, and daggers.

Behavior
Rohirrim are most often found on horseback, and when mounted, they move faster than the player can sprint -- even the Wargs of Mordor cannot outpace them. They have a pathing distance of 16 blocks (24 when riding a horse).

When a Rohirrim sees a player or NPC with a negative Rohan alignment, they will quickly attack him/her, often knocking the entity into the sight range of other Rohirrim.

The Rohirrim also show much value for their mighty steeds, protecting them by attacking anyone who kills a horse within their sight, regardless of alignment. But be wary, they count any rideable mob as a horse. (Horses, boars, and donkeys, etc.)

All hostile mobs target them. When they aren't fighting, the Rohirrim are able to wander freely within the world.

Hiring
Rohirrim warriors can be hired from a Rohirrim Marshal in a Rohan Fort, given that the player has a high enough Rohan alignment. After hiring a unit from a Rohirrim Marshal, the player gains the achievement "Forth Eorlingas!"
 * A Rohirrim warrior (not mounted) can be hired for 15 silver coins at an alignment of +150.
 * A Rohirrim Archer (not mounted) can be hired for 25 silver coins at an alignment of +200.
 * A Rohirrim Cavalry can be hired for 25 silver coins at an alignment of +250.
 * A Rohirrim Archer Cavalry can be hired for 35 silver coins at an alignment of +300.

Advantages

 * Best horses in all of Middle-Earth
 * Extremely fast unit when mounted; can outpace almost any NPC (or player)
 * Not overly expensive, considering their strength

Disadvantages

 * Not especially strong when not mounted
 * Moderate armour
 * Banner-Bearers cannot be hired as a mounted unit

Drops
Evil players may kill Rohirrim to acquire bones. The horse-lords may also rarely drop their equipped armor/weapons. Killing these men in their towers isn't the hardest thing. Just take some matches to it!