Here is a good thread on providing info on your application. advice on S.C. CWP All they are going to do is contact your county sheriffs office and have them sign off on your application. Then do a state and federal background check. From what you said about your background you won't have any problems getting your permit. Just fill it out and sen it in...you'll be OK!
USAF Retired, CATM, SC CWP, NH NR CWP, NRA Benefactor
To preserve liberty, it is essential that the whole body of people always possess arms, and be taught alike, especially when young, how to use them... -- Richard Henry Lee, 1787