MLT X NON ADHERENCE TO ATC CLRNC FAILED TO EXECUTE MISSED APCH AS INSTRUCTED. PLTDEV.

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MLT X WAS ON PRACTICE ILS RWY 13 APCH; AND HAD BEEN CLRED FOR THE OPTION WITH MISSED APCH INSTRUCTIONS HDG 220. SMA Y WAS DEPARTING RWY 17; WITH A REQUEST FOR TOUCH-AND-GO ON RWY 17 (SEE DIAGRAM BELOW). LCL CTLR (LC); SEEING THAT WAKE TURB SEPARATION OF 2 MINS WOULD NOT EXIST IF SMA Y WAS ALLOWED TO ENTER DOWNWIND FOR RWY 17; ASKED PLT OF SMA Y IF HE COULD ENTER L BASE TO RWY 22 AND MAKE A SHORT APCH. THE PLT CONCURRED; AND WAS INSTRUCTED TO 'ENTER L BASE; RWY 22; MAKE SHORT APCH; CLRED FOR TOUCH-AND-GO; TFC A HVY WDB ON 3 MI FINAL TO RWY 13.' MLT X WAS ISSUED TFC ON SMA Y AND BOTH ACFT ACKNOWLEDGED TFC. AFTER A FEW MOMENTS; LCL CTLR DETERMINED THAT SMA Y WOULD NOT BE THROUGH THE INTXN OF RWY 13 AND 22 PRIOR TO MLT X XING THE RWY 13 THRESHOLD. SINCE SMA Y WAS ALREADY TURNING CLOSE-IN FINAL TO RWY 22; LCL CTLR TOLD FORCE 03 TO 'EXECUTE MISSED APCH OVER THE APCH LIGHTS RWY 13; DO NOT OVERFLY RWY 22.' THE PLT OF MLT X SAID THAT HE WAS EXPECTING A TOUCH-AND-GO; AND WAS TOLD BY LCL CTLR 2 MORE TIMES UNABLE AND TO EXECUTE THE MISSED APCH OVER THE LIGHTS. THE PLT OF FORCE 03 DISREGARDED THE CTLR'S INSTRUCTIONS AND MADE A LOW APCH OVER RWY 13; FULL LENGTH (10000 FT). SMA Y WAS TOLD TO 'MAKE THIS A STOP-AND-GO; HVY WDB OVERFLYING THE RWY.' SMA Y STOPPED APPROX 500 FT FROM RWY 13. AFTER A FEW MOMENTS; AN AUDIBLY SHAKEN VOICE FROM SMA Y ASKED TO TAXI TO PARKING. THERE IS ABSOLUTELY NO EXCUSE FOR THE PLT OF MLT X TO DISREGARD ATC INSTRUCTIONS. SINCE GAR INSTRUCTIONS WERE NOT GIVEN; THIS TECHNICALLY BECOMES A RWY INCURSION. IF THE PLT OF MLT X WAS UNABLE TO ABIDE BY ATC INSTRUCTIONS; HE IS OBLIGATED TO ADVISE ATC OF THE FACT. THIS SITUATION COULD HAVE TURNED INTO A MUCH WORSE SITUATION HAD NOT LCL CTLR BEEN VIGILANT TO THE FACT THAT MLT X HAD NO INTENTIONS OF ABIDING BY ATC INSTRUCTIONS. (IN CLOSING; IT IS STANDARD PRACTICE AT GGG TO ADVISE ACFT TO EXECUTE MISSED APCH AT A GIVEN POINT IN THE PATTERN; WHETHER AT THE APCH END OR THE DEP END OF A RWY TO ACCOMMODATE ITINERANT TFC AND PATTERN (TWR) TFC.)