I'm almost 100% sure that this is a collusion to obtain Achievements.
5 Achievements within 1 hour! And all the players of one clan - HO. This Argentinian clan.
Rules - viewtopic.php?f=49&t=896
4.4 It is forbidden to make achievments by plotting it with other players.
Punishment- a player who instigates another player to breech this rule, is an initiator and therefore getting an achievment - will be fined (25k) and given an 18 hour ban.
Player(s) who have been helping in getting an achievment will be fined (25k).
Who is responsible for the Argentine server?
Demands to punish those responsible. And further monitoring of these rules.