Pretty simple. Watch Update 9 then cast your vote. By tab-targetting I mean you can either press Tab until your target is highlighted or click the target directly. Reticle targetting means you get a crosshairs and can't lock onto a particular target. Whoever is behind your crosshairs receives the damage meaning you may hit the wrong target if you don't have it lined up perfectly or somebody elses' hit box overlaps.
Camelot Unchained Backer
DAOC [retired]: R11 Cleric R11 Druid R11 Minstrel R9 Eldritch R6 Sorc R6 Scout R5 Healer