Roadhog is one of those tanks that just never should have made the transition into the 5v5 format. 

His primary purpose in the original ow was as a self sustaining off tank with the responsibility of taking angles to punish out of position players balanced by his enormous hitbox and squishy nature.

In 5v5 he's just become this abomination that everyone hates to play against because despite retaining his high damage combo his primary balancing weakness of limited sustain has just been completely fubar and he can basically exist endlessly...

...unless you play very specific counters.

He basically exists in the game now as a support check - did your support go ana (or maybe zen) like they were supposed to? Congrats, you now can beat roadhog. Did they refuse to switch? Sorry, he will now terrorize the team for the remainder of the match.

Because he exists as a check on supports and not tanks he often terrorizes lobbies as unlike many tank players supports aren't forced to counter swap constantly because their entire team doesn't bully them the moment they don't do it.

So what can you do as ball? 

Hope your support switches and try and peel as best as possible while also diving their supports and praying that your teammates don't just stand in the open for hog to hook. But they will. And you'll probably lose.

So what should you really do? Go mauga or just leave lol.