Ross is a member of the Army Rangers and was a soldier under William Joseph B.J. Blazkowicz in Wolfenstein RPG. He is found in the Tower locked in a cell. He was mistaken for a local, and was caught off guard when they grabbed a few vagrants in the town of Paderborn. They gave him some medication, which helped him heal from his wounds. B.J. discovered him, and he taught B.J. how to mix the health potion.
B.J. wanted to help him escape. Ross told B.J. he instead to remain, and that he would be let out in a day. But only if they still believed he was a local. He told B.J. to leave.