IF you sided with the Queen and you execute the General and you have Mandalore and you will get influence with him.
In Solo Mode with Mandalore with your exile, Attacking Tobin due to Tobin's naivete, stupidity, and weakness will gain Influence Mandalore.
well if you do think with Visas around, she will trumpih Mandalore with the influence.
So when In Solo Mode, Place her the fartherest away from Tobin and you and Mandalore at the closet to Tobin.
When attacking it is alright to turn off Solo Mode.