You take this quest after The Missing Patrol and even though the distance is short back to the Gate of Torment, you will have to fight several groups. As soon as you start heading back, as you pass certain areas, groups of Torment Demons will spawn and head towards you. Another trick that works if you started from Gate of Torment is to suicide your party (not the Oddbodies). This will spawn you at the first resurrection shrine by Gate of Torment. The Oddbodies will rush over to get to you and given the healing they already have, will easily make it to you with only one or two casualties.