FLC OF AN MLG DURING TAXI OUT FOR TKOF HAS A TXWY EXCURSION EVEN THOUGH USING THE ARPT DIAGRAM AS REF. GND CTL SAYS THEY WILL NEED AN ESCORT TO RETURN TO CORRECT TXWY.

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DURING TAXI FOR TKOF TO RWY 25R AT LAX; GND CTL AMENDED OUR TAXI INSTRUCTIONS (DUE TO OPPOSITE DIRECTION LNDG TFC) TO READ 'TAXI RWY 25R VIA TXWYS C; C6; B.' READBACK WAS CORRECT. ARPT DIAGRAM WAS OUT AND BEING USED FOR REF. OUR ACFT WAS EBOUND ON TXWY C; TURNED R AT TXWY C6. FO WAS CLRING R SIDE OF ACFT FOR PREVIOUSLY LANDED B757; WHEN HE SENSED A L TURN (WHICH WAS THE CORRECT DIRECTION); LOOKED L AND REALIZED CAPT HAD STARTED TO TURN EARLY. FO STATED 'TXWY B IS AHEAD.' CAPT PAUSED MOMENTARILY AND SAID; 'NO THIS IS IT.' AT THAT POINT; GND CTL INSTRUCTED US TO STOP; THAT THE TXWY IN QUESTION WAS NOT STRESSED FOR OUR ACFT AND WE WOULD HAVE TO BE ESCORTED. ESCORT ARRIVED IN LESS THAN 2 MINS; STOPPED TFC ON ADJACENT SVC ROAD; ESCORTED US TO TXWY B. WE PROCEEDED WITHOUT ANY FURTHER PROB. ONE AREA THAT CAUSED SOME CONFUSION WAS THE CLOSE PROX OF TXWYS B AND C NEAR TXWY C6. IN FACT; THE TXWY B SIGN ON THE L SIDE OF TXWY B; IS ACTUALLY LOCATED ON THE R SIDE OF TXWY C; IN PLAIN VIEW AS YOU MAKE THE L TURN ONTO TXWY C. HOWEVER; THE ARPT DIAGRAM IS VERY CLR AS TO THE LAYOUT OF TXWYS B/C; AND WAS BEING USED FOR REF. WE DID NOT FIND ANY INFO THAT STATED THAT THIS TXWY WAS NOT STRESSED AS GND CTL SAID; BUT DID FIND A REF TO INSUFFICIENT WING CLRNC WITH B747 ACFT ON TXWY C AND ADJACENT SVC ROAD. I HAVE LEARNED THAT I SHOULD HAVE BEEN MORE ASSERTIVE WITH TAXI INSTRUCTIONS TO CAPT; PERHAPS APPLIED BRAKES. CAPT DID ACKNOWLEDGE THAT FO ATTEMPTED TO STOP HIM.