High score on career development course Published Sept. 11, 2009 Education office TINKER AIR FORCE BASE, Okla. -- 72nd Security Force Squadron member, Airman 1st Class Brett Nidiffer, scored 95 on his career development course recently. "I worked very hard studying for this test and take my job and its knowledge very seriously. Its good see that hard work in general is appreciated and will help me strive to be better at my job," he said. Airman Nidiffer is now a Security Forces Journeyman.