ðeɪ ɹˈɪɡ ɪt tə sˈɛlfdᵻstɹˈʌkt əpˌɑːn ˈɪmpækt, ɐnˈaɪəlˌeɪɾɪŋ ðə kəmbˈaɪnz hˈoʊm plˈænɪt ænd kɹˈɪplɪŋ ðɛɹ fˈoːɹsᵻz, bˌʌt ðɪ ɛksplˈoʊʒən ɪz nˌɑːt səfˈɪʃənt tə dᵻstɹˈɔɪ ðə kəmbˈaɪn ɔːɹ ðɛɹ dˈaɪsən sfˈɪɹ.
They rig it to self-destruct upon impact, annihilating the Combine's home planet and crippling their forces, but the explosion is not sufficient to destroy the Combine or their Dyson Sphere.