Use your Retribution to reveal the enemy Androxus(or the other Flank champion),it will be easier to win a 1v1 with reveal advantage,you can also give an information to your team about who lurking behind the backline
It can be useful to bait him with your shield, and then use Rocket boots towards cover. Still an extremely difficult match-up, unless you have a DPS that is on-point with taking him out.
Unless the enemy Barik is using the Fortify Legendary card, his Barricade only has 5000 Health. It can sometimes be more advantageous to simply destroy the Barricade instead of sidestepping it.