So, if you'll follow this link and read through this conversation, I'm sure it would be easier than my struggling to explain everything. Don't worry, it just links you to a thread on the TES Nexus forums and how I was directed here. http://www.thenexusforums.com/index.php?/topic/404025-mod-issues-unsure-of-how-to-pinpoint-these/page__st__10__gopid__3339306#entry3339306

So yeah...suggestions?

Get a mod called Refscope. Read the readme, and learn to use it. It will allow you to identify which mod the missing meshes are from for the guard. Then reinstall that mod properly, as some of its resources (clothing or armor) have not been installed.