ɐnˈʌðɚ dˈɪfɹəns bᵻtwˌiːn ɹˈoʊlɪŋ θˈʌndɚ ænd kˈoʊd nˈeɪm: vˈaɪpɚɹ ɪz ðɪ ˈædᵻd ˈɛmfəsɪs ˌɔn ɹˈɛskjuːɪŋ hˈɑːstɪdʒᵻz, lˈaɪk ðɪ ˈɔːlsoʊsˈɪmɪlɚ ʃɪnˈoʊbaɪ.
Another difference between Rolling Thunder and Code Name: Viper is the added emphasis on rescuing hostages, like the also-similar Shinobi.