Tie breaker?

In this case if we both end up 12-4, both 5-1 in division, tied head to head, then common opponets? If so how do we not win the tie breaker?

Because we wouldn't be tied in common opponents.

They beat the Ravens.

We lost to the Browns and Cardinals. They lost to the Steelers.

That's current common opponents. If we both lost to the Ravens and Seahawks this week they'd still have us beat.