SOME ADDITIONAL LINKS
"Arma 3 Modding Characters"
Instructions on 3D modeling, more likely compared to my own chicken scratch notes here at home, likely requiring clarifying instructions for new 3D modelers. Instructions also instruct using only BIS's tools, omitting any tool explanations for The Gimp or The Blender.
"ARMA FAQ: 6.1 Custom Faces"
Very basic information on the face.jpg/face.paa file.
Armaholic FAQ: How do I use/make custom faces?
Contains much better instructions.
MY ADDITIONAL CLARIFICATION
Basically, you're creating a face.jpg or face.paa file within:
"My\ Documents/USERNAME/ARMA\ 3/face.jpg". For ARMA 3, the face is located at specific coordinates designated as "XXX" below.
XXXXXXXXXXX
X_________X
X___XXX___X
X___XXX___X
X_________X
X_________X
XXXXXXXXXXX
Basically, the approximate face texture coordinates is 1/2 the size of an original appropriately sized image (ie. 512x512) and resized to about 1/2 the size of the original image and then moved-up to about 1/3 from the top of the image, centered by width size as denoted above. Eyes, legs, arms, etc all have other coordinate texture locations within the 512x512 (or other appropriate sized) image. Seems the Wipman Reference Templates utilized many layers.
THE GIMP INSTRUCTIONS
READY TO USE TEMPLATES
Wipman's Reference (face.jpg) Templates using Adobe Photoshop files, compatible with The Gimp:
MY FINAL NOTES
I personally think in an effort to simplify these face.jpg files, each image file should contain only one body part, within a subfolder, or for example "My\ Documents/USERNAME/ARMA\ 3/Profile/leg.jpg". (ie. face.jpg, arms.jpg, legs.jpg, eye.jpg, ...) Cramming everything into one file, without explaining the coordinates of each body part within a face.jpg, is overly complicated.
As previously mentioned, the previously mentioned instructions are unique and only pertain to BIS tools, and nothing about using The Gimp and Blender, etc.
Another bug; in order for the ARMA 3 Game to recognize a new or changed (face.jpg) image file (ie. "My\ Documents/USERNAME/ARMA\ 3/face.jpg", the user needs to exit and restart the game for the game to recognize the newly changed face.jpg. You also need to manually designate your profile to use this custom file.jpg by going into the "Configure > Profile > Edit > Face > Custom Face". (A new face.jpg file will be recognized without restart, but a modified face.jpg will not be updated until the game is restarted.)