save your face.jpg file to your
ofp/users/username folder
lets say you use "Charlotte"
ofp/users/charlotte
(Re edit your face.jpg to get it around the 10 - 15KB size (A lot of servers restrict the maximum custom user filesize to speed up connection times to servers. So having a large filesize will restrict the number of servers you can connect too)
Mines 14kb, just reduce the resolution
Then in the OFP screen that has
"Player:Playername" in the top left corner
Right click it.
Your username should then be highlighted. If you have more than one username, highlight the one you want to use the custom face for
Then select "Edit"
In the "Face" section, scroll down until you find "Custom Face"
Select it and then click OK,
You could at this point change the voiceover used in the radio messaging system and add sunglasses etc
Job done!!