Complex sentence: The uniform used by the Confederate States Marine Corps resembled that prescribed for the Confederate Army, but there is controversy about some of the exact details of the uniform since the CSMC was not as large and many of its records were destroyed.
Split into simpler sentences: The uniform used by the Confederate States Marine Corps resembled that prescribed for the Confederate Army. However, there is controversy about some of the exact details of the uniform, since the CSMC was not as large, and many of its records were destroyed.