Hi superunixstudio Sounds like your on the right track

First look in your "Docs" folder. In there should be a .pdf named "ocfpscguide" (Official Community Guide)
It has a wealth of info on setting and importing your own custom models and more.
But to help you out, before exporting from Blender it's best to import/merge another model from fpsc ( like a table or barrel ) to get the scaling correct, then export.
Entities go into a folder inside entitybank ( files\entitybank\Name of Folder) You need 4 things to setup. 1- the .x mesh 2- a .bmp pic of the model ( 64x64 or 128x128)
3 - the .fpe file ( open another entities .fpe file and see how they are setup ) 4 - the texture itself ( 512x512 or 1024x1024) the .fpe file has a texture path that points to this file.
After this one can expand on these like extra textures for shaders and such. But if you have these 4 in place your entity should show up and be usable in fpsc.
My games never have bugs. They just develop random features..
Lots and lots of random features...