Complex sentence: Similarly, Col. Moore also realized that the PAVN casualties figures were inaccurate; he lowered the body count figure of 834 Vietnamese killed at LZ X-Ray to 634, regarding the former number was too high.
Split into simpler sentences: Similarly, Col. Moore also realized that the PAVN casualties figures were inaccurate. The original body count figure at LZ X-Ray was 834, but was later lowered to 634 by Moore, as he regarded the former number was too high.