ACR PLT HAS 2 INCIDENTS; 1 AT ALT WHEN A FLT OF FGTS COME IN CLOSE PROX; AND A WRONG ALT ON FINAL APCH.

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WE WERE ADVISED THAT WE WOULD HAVE TO REMAIN AT FL350 UNTIL APPROX 90-95 NM FROM FAI ON J-502; OR GO DOWN TO FL190 APPROX 200 NM FROM FAI. WE OPTED TO REMAIN AT FL350. APPROX 120 NM FROM FAI; WE RECEIVED A CLRNC; AT PLT'S DISCRETION; TO FL330. APPROX 105 NM FROM FAI; WE STARTED OUR DSCNT TO FL330. DSNDING THROUGH FL335; ATC SAID; 'ACR X IMMEDIATE R TURN TO 360 AND CLB TO FL350.' DURING THE TURN AND CLB; I SAW 2 TACTICAL ACFT (FGTS) TO OUR L APPROX 1 PLUS NM AWAY; WHAT APPEARED TO BE CO-ALT; APPEARING TO BE JOINING UP IN A R TURN HDG THROUGH S. I CALLED THE TFC IN SIGHT; CONTINUING THE CLB AND TURN. ATC THEN TOLD US WE WERE CLRED DIRECT TO FAI VOR FROM THE 360 DEG HDG. SHORTLY THEREAFTER; WE WERE CLRED TO 17000. DSNDING THROUGH APPROX FL280; ATC ASKED FOR 'MAX RATE OF DSCNT THROUGH FL210.' THIS PUT US 'SHORT' OF A 3-1 DSCNT PROFILE; SO I REDUCED DSCNT RATE (TO APPROX 2000 FPM/280 KTS). PRIOR TO 17000; RECEIVED CLRNC TO 10000. PASSING 13000; SWITCHED TO APCH CTL AND CLRED TO 7000. APPROX 32 NM FROM FAI VOR; PASSING 9000; CLRED TO 4500; AND WE WERE ADVISED THAT HE'D 'CALL OUR R TURN' FOR WHAT LOOKED LIKE THE DOWNWIND HDG FOR LNDG ON RWY 19R AT FAI. DSNDING THROUGH 5800; ATC SAID; (ATC) 'I NEED YOU AT 6000. YOU WERE CLRED TO 10000; BUT 6000 WILL WORK NOW.' (FLT) 'NEGATIVE; WE WERE CLRED TO 4500 AND YOU WERE TO CALL OUR R TURN.' (ATC) 'IF I SAID THAT; I DIDN'T MEAN TO. NOW I NEED YOU TO CLB TO 7000.' SWITCHING TO APCH CTL WE WERE VECTORED APPROX 16 NM N OF FAI. ON AN INTERCEPT HDG OF 130 DEGS; WE WERE CLRED TO 3700. PRIOR TO LOC INTERCEPT; THE GND PROX WARNING (GPWS) WENT OFF. TO SILENCE THE WARNING; I HAD TO CLB THROUGH 4500. WE ADVISED APCH CTL OF WHAT HAPPENED; AS WE RECOMMENCED OUR DSCNT; JUST AS THE LOC HAD CASE BREAK. REMAINDER OF FLT NORMAL.