Wisniewaki is first seen with Nowak, Bohater, Ulan, Rudinski, and Jackowicz in the opening cutscene of "The Mace". Later on, he is seen fighting in the trenches with Ulan. Bohater may choose to go with him and Ulan or with Rudinski. If he stays alive, he will remain in the trench with the rest of the soldiers. He also will not fold with Ulan, Rudinski, Bohater, and Baron.