Have you tried the SWBF1 Freecam?
SWBF1 FreeCam HERE
Before installing... backup:
Star Wars Battlefront\GameData\Data\_LVL_PC\Common\ENG\commo n.lvl
Then replace the common.lvl at that location with the one in the zip. (packed with 7zip but any unzipper should work).
<Backspace> = pause/unpause
<-> = slow speed
<+> = faster speed
<W>, <S>, <A>, <D> = forward, back, right, left
<Home> = up
<End> = down
In singleplayer... press <Backspace> twice to disable HUD icons and minimap for better screenshots and vids. In multiplayer press <ESC> twice to enable sound and chat