Can't find a mini tank when I need one for the life of me for this stage.
Every mission I've found online that says has them, there's dogs instead no matter what difficulty I put it on.
I have seen a few on the streets in places where Black Tusk roam. The area near Tidal Basin where the War Hound Convoy travels would be a good place to look. I also think you should be able to find at least one in any invaded mission.
The first boss at Jefferson Trade center has one guaranteed but that's not a mission this week - camp white oak for sure - lots of them it also has to be on heroic to get the them.
I keep getting warhounds in place of mini tanks where they "should" be in the locations I've checked online. What difficulty are they in because even in White Oak I seem to get nothing but dogs once I got lvl 40.