Shoulder Bash can hit behind Reversal; keep shooting at him and wait until he pops it up, then Bash as soon as possible, as he will try to flee with Nether Step before getting hit.
Dredge Anchor comes from Makoa's left hand; when engaging him, try to use map walls/objects for cover on his left side to waste his Anchor. Never use Kinetic Burst/Shoulder Bash him unless you know his Anchor is down, as he can pull you along.
Don't engage right away, see if there's a portal near him. If so, knock him away from it to prevent fleeing and healing. If your ult is up, stun him to prevent another portal and to protect yourself from Broadside.
Fernando's ultimate leaves him CC Immune, but not his allies; If he's using it to save someone from being finished, knock them off his ult area (preferably towards your team) and secure the kill.