hi @Spira_Walk
Are you sure it dissapeared? FPS as the name states is First Person Shooter
When you possess you wont see your character as you are looking throught their eyes as it were. Though if set up correctly you should see arms maybe.
If you want to see the whole character you need 3rd person.
If im totally wrong please forgive me and let me know / show me some screen shots so we can help more!