Short summary of Reign of Chaos (ROC) / Eden main info
Attackers are players who have loyalty equal to the total honor level of the structure. Support are players who have the honor to attack the building only after it has entered the damaged status..
Eg: Player above 4800 loyalty when you atack a city lvl 1 are atackers. Players between 3000 and 4799 are supporters.
Banner are two skills in the red specialty tree, at the top, which allow an alliance, in a given area, to have a reduction of up to 50% in the cost of stamina and 10% extra demolition points. (Click here to see the post I made about this)