Played a few rounds with the shotgun and enjoyed it quite a bit. Helped that I had a pretty good team of randoms through matchmaking.
Heard the controls weren't great on controller so changed them to below and the aiming was fine -
Turned off Snap to target, aim assist, auto-centre recoil, motion blur and camera motion strength.
Upped Horizontal Sensitivity to 35 & Horizontal Sensitivity to 30. ADS low to 0.4 & ADS High to 0.2.
Sources - A mix of
https://www.reddit.com/r/Back4Blood/com ... er_aiming/ &
https://youtu.be/iPQhZxOLoZs?t=197