I think we need more games. If everyone could pitch in with ideas for new games then we could probably have alot.
I think a cool game would be "wall shootdown" It's just a bunch of mobs walking along a high wall (100x1x20 (LWH)) and you have to shoot them down with bows to gain points for your team. Once your team gains a certain amount of points, you win a overall point.
There are different versions of bow aimbot. And most clients let you choose between targeting mobs and/or players. I don't think there are actually anti-hack pluggins for bow aimbot btw. :/
Staff probably has plenty of game ideas, feel free to carry on but one game won't be decided on most likely.