E145 FLC ARE DISTR DUE TO INCORRECTLY FOLLOWED TAXI INSTRUCTIONS; MIKE PROB AND LAST SECOND RTE CHANGES IMMEDIATELY AFTER TKOF.

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WHEN READY TO TAXI FOR TKOF AT MKE; WE WERE GIVEN A CLRNC TO TAXI TO RWY 1L VIA TXWY B; HOLD SHORT OF TXWY R. ONLY; I HEARD HOLD SHORT 'ON' TXWY R; SO I TAXIED VIA TXWY B; MADE A L TURN ON TXWY R AND HELD SHORT OF RWY 25L ON TXWY R. TWR/GND CTLR (HE WAS WORKING BOTH FREQS) TOLD US HE HAD WANTED US TO HOLD SHORT OF TXWY R SINCE IT WOULD BE SOME TIME BEFORE HE COULD RELEASE US ON RWY 1L; BUT NOW HOLD SHORT OF RWY 25L ON TXWY R. EVENTUALLY; WE WERE CLRED TO TAXI TO RWY 1L. THEN AFTER A BIT; WE WERE GIVEN CLRNC FOR IMMEDIATE TKOF ON RWY 1L; L TURN TO 330 DEGS; LEAVING 2000 FT. THE FO ACKNOWLEDGED THE IMMEDIATE TKOF CLRNC SINCE THEY DO ALL THE TALKING ON THE GND; AND I BEGAN TO MOVE ONTO THE RWY. IT WAS AT THIS MOMENT THAT MY HEADSET MIKE FAILED. I ASKED THE FO IF HE BELIEVED HE COULD HEAR ME WELL ENOUGH TO SAFELY CONTINUE THE TKOF AND HE SAID HE COULD. I WAS A BIT FLUSTERED AT MY 'BLOWN' TAXI; SO I WANTED TO GET THE HECK OUT OF THERE; SO WE ROLLED. NEXT TIME I PROBABLY WOULD CLR THE RWY AND GET ANOTHER HEADSET. SHORTLY AFTER TKOF; WHILE WE WERE CLEANING UP THE ACFT AND STUFF; GND/TWR CALLED WITH A RATHER LONG CLRNC -- SOMETHING TO THE EFFECT OF LEAVING 2000 FT; L TURN TO 310 DEGS; MAINTAIN 3000 FT. AT LEAST THAT'S WHAT THE FO AND I BOTH HEARD. I HAD TO FUMBLE AROUND FOR THE HAND MIKE AND DID NOT MAKE A COMPLETE READBACK. SHORTLY THEREAFTER; TWR/GND CALLED AND SARCASTICALLY ASKED WEE WE EVERY GOING TO START THAT L TURN TO 210 DEGS; OR WERE WE GOING TO FLY INTO OTHER AIRSPACE (OTHER AIRSPACE WAS NOT WHAT HE SAID; BUT I DON'T REMEMBER HIS EXACT WORDS). ANYWAY; THEN HE SAID EXPEDITE TURN TO 210 DEGS; CLB TO 7000 FT; EXPEDITE THROUGH 5000 FT. WE BEAT IT OUT OF THERE AS FAST AS WE COULD. THERE WERE SEVERAL PROBS HERE. FIRST; I SHOULDN'T HAVE BLOWN THE TAXI CLRNC. SECOND; THE HEADSET MIKE FAILED AT AN EXTREMELY INOPPORTUNE TIME; CAUSING ME TO MAKE A LESS THAN FULL READBACK. THIRD; ONE GUY WAS WORKING TWR AND GND. HE WAS EXTREMELY BUSY AND SOUNDED FRUSTRATED AND A BIT FLUSTERED EVEN BEFORE I BLEW THE TAXI AND MORE SO AFTERWARD. ONE MAN SHOULD NOT HAVE HAD TO CARRY THE WORKLOAD HE WAS CARRYING. PERHAPS HAD HE NOT BEEN SO BUSY AND FLUSTERED; HE WOULD HAVE GIVEN US THAT TURN INSTRUCTION BEFORE TKOF ROLL AND NOT RIGHT AFTER TKOF; WHEN IT IS ALWAYS EASIEST TO MISS SOMETHING.