The room text says
Game Master's Guide wrote:
"You need pawns for two kobold warriors and the trap master"
Later, under the subheading "Kobold Fight" it says
Game Master's Guide wrote:
Two kobold warriors are stationed here, along with a kobold trap master. All three kobolds have orders to make sure that no one reaches the kobold lair below.
In the next paragraph about strategy it says
Game Master's Guide wrote:
The two warriors start the combat at either side of the spiral staircase leading down, but they move to block the stairs at the start of their first turn.
....
The kobold trap master stays where she is, spending all of her actons to lay down small spike straps
The map shows the placement of the two warriors and the trap master.
I think you can safely ignore the parenthetical (3) in the stat block for the warriors
