I've got a question involving combat when you can't see. Lets say a fighter is fighting a drow and the fighter and the drow are both within a cloud of darkness, which the drow can see in but no one else can. Lets say the cloud envelopes a large area, say a 4X4 area, and the fighter and the drow each only occupy one square. Lets say a companion of the fighter (a cleric) is not in the cloud of darkness and can't see the fighter or the drow. If the cleric wants to do a ranged burst attack to try to hit the drow, is he able to target any square he wants to even though he can't see the square? And if the attack gives a secondary bonus to another target player, is the cleric able to give the bonus to the fighter if the cleric doesn't know where the fighter is? Lastly, is the fighter able to walk around wherever he wants in the cloud of darkness and try to place himself in a flanking position with another ally even if him and his ally can't see? I know they wouldn't get the flanking bonus but could they put themselves into flanking positions?