Here is a Immortal Trophy save, i have seen loads that don't work, but this one actually does!
**ONCE LOADED UP IN MW2, DO NOT CLICK RESUME!! CHOOSE MISSION SELECT, AND THEN ENDGAME, FINISH THAT WITHOUT DYING OR FAILING, AND THE TROPHY WILL POP!!**
Can confirm this save does unlock it, i got just after falling the jetski down the water fall.
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