Walton Churchill said in interview that they couldn't give a final verdict on nights away from base but did say that time away would be matched by base days off: ie 4 nights work = 84 hours off. I dont like to be cynical but when basic info re: pension and lifestyle is not available at the point of contract, one has to assume the worst.
Recent job cuts have changed the playing field dramatically however and the ball may soon be back in DHL's court.