Yes exactly; previous to the B-178 update, I could be running, and then aim-down-sight, but as you say, I can't do that now. It's not so much of a problem for me early in the game when stamina is low, but later in the game most of my movement when on foot is spent running. I use an Autohotkey script to 'hold down' the keyboard run key for me (toggle on and off), because I can't press two keys at the same time manually (I use a stick in my mouth to press keys on the keyboard, in conjunction with a trackball with 'lockdown' keys as a pointing device).