ɪɾ ɪz ɐ stˈændɐlˌoʊn ɛkspˈænʃən ʌv mˈɛtʃ wˈɔːɹɪɚ fˈoːɹ: vˈɛndʒəns, bˈeɪst ɔnðə bˈæɾəl tˈɛk mˈɛtʃ wˈɔːɹɪɚ ɡˈeɪm jˈuːnɪvˌɜːs.
It is a standalone expansion of MechWarrior 4: Vengeance, based on the BattleTech MechWarrior game universe.