Hussar

A hussar is proficient with light armor, but not with medium or heavy armor or with shields. This replaces the cavalier's normal armor proficiencies.

A hussar gains Acrobatics, Escape Artist, Stealth, and Survival as class skills. This alters the cavalier's class skills.

A hussar is able to spur on any mount that he rides to faster speeds than other riders. The base speed of any creature that the hussar is riding increases by 10 feet. This applies to all forms of movement that the mount possesses. At 5th level and every 5 cavalier levels thereafter, this bonus increases by an additional 5 feet (to a maximum increase of 30 feet at 20th level). This ability replaces tactician, banner, and greater banner.

At 6th level, a hussar and his mount work in tandem to achieve amazing accomplishments of dexterity while riding. As long as the hussar is mounted, whenever he or his mount is required to attempt an Acrobatics, Climb, Escape Artist, Fly, Stealth, or Swim check, he can use his own modifier or his mount's, whichever is higher. Additionally, regardless of whose bonus is used, the hussar gains an additional +2 bonus on all skill checks to overcome obstacles as part of a chase. At 12th level, this bonus increases to +4, and at 18th level, it increases to +6. This ability replaces the bonus feats gained at 6th, 12th, and 18th levels.

At 9th level, a hussar is able to maneuver his mount with exceptional grace and poise, even in areas that would normally be a difficult fit for such a creature. Any creature that the hussar is riding can squeeze into a space that is at least half as wide as its normal space without taking the normal penalties on attack rolls and AC for doing so, though it still moves at half speed. If the mount attempts to squeeze into a space less than half its space's width, it must use the Escape Artist skill to do so, and takes the normal penalties. This ability replaces greater tactician.

At 17th level, a hussar's control over his mount is advanced enough to allow the mount to turn on the spot, even when charging forward at full speed. Whenever the hussar makes the charge or run action while mounted, he can make a single turn of up to 90 degrees at any one point during this movement. This ability replaces master tactician.