Bros. Before Ho Ho Ho's (Horde)

Bros. Before Ho Ho Ho's is related to the seasonal world event, the Feast of Winter Veil. Completing this achievement is a criterium for the meta achievement.

The required Mistletoe can be obtained by kissing Winter Revelers in inns.

Locations
Though the list of brothers is much shorter than the one for, they are harder to get to. Two of them are in Northrend, requiring the Wrath of the Lich King expansion. Getting to Brother Keltan requires Cold Weather Flying.
 * 1) Brother Malach in Undercity is standing near the group fighting in the War Quarter.
 * 2) Durkot Wolfbrother can be found in Warsong Hold in Borean Tundra near the Wolf Stables.
 * 3) Brother Keltan is in Icecrown on the patrolling Airship (find the current location by looking at map)