What's everyone's strategy with Roadhog?
I played him for the first time today, really liked pulling/large hp pull, but I found it really hard to actually kill someone 1 on 1 after a successful pull.
The gun has a large delay between shots, so your enemy usually runs away after the first one. I tried the Hook > R2 (close range) shot > Melee, but even that didn't kill the enemy most of the time.
Should I just use the mid range concentrated shot and aim for the head or am I doing something else wrong?
You should be trying to hook squishy targets. Supports/offensive heroes. A hook + a shot will kill most of those. You shouldn't bother hooking tanks or most defensive heroes. You won't really get anything out of that. Against Bastion you should be trying to flank and hook him while in turret mode. You can personally delete him.