Player 6
The bus is in the square you are now in, so if you move away, you can no longer search it. You need to do the search FIRST. Also, you might find a zombie, so in that case, you MUST fight it and cannot leave until it is killed. Now that player 3 has found the note, EVERYONE on the team can try to solve the problem together.
Action 1: Search the bus. Roll 3 = fail. Roll 6 - You found a HULK!
Action 2: Attack the Hulk with the bat. Roll 3 = fail.
Action 3: Attack again. Roll 2 = fail.