ðə ɡˈeɪm sˈɪstəm tˈaɪz ɪn wɪð wˈɔːkɚz nˈɑːvəl wˈɜːld æt wˈɔːɹ: ɹˌɛvɪlˈeɪʃən, wˌɪtʃ tˈɛlz ðə tˈeɪl ʌvðə dˈɑːɹkɚ sˈaɪd ʌvðə wˈɔːɹ, mˈɪksɪŋ mˈɪlətˌɛɹi ɐdvˈɛntʃɚ wɪð ˈɛlɪmənts ʌv hˈɔɹɚ ænd pˈæɹənˌoːɹməl ᵻvˈɛnts.
The game system ties in with Walker's novel World at War: Revelation, which tells the tale of the darker side of the war, mixing military adventure with  elements of horror and paranormal events.