It was a given that they would have to put their life on line to let someone else get the head of the King which carries the highest bounty of all and then retreat back to the place where their payer was hiding and residing.
That was a problem, because they weren't soldiers who carried the comradeship, the feeling of brotherhood among them. Nope, for them the only thing that matters is the highest bounty. It has to be them and no one else, not even amongst them, who will get the highest bounty.
Thus, the assassins started fighting the soldiers as well as the fellow assassins while making their way towards the King, in order to get the highest bounty. When this situation was reported to Shikanji he cursed severely at the assassins and then after calming down, he rephrased that every assassin who will kill the King or help in killing the King will get the reward. A great one.
