Some card questions.

[mqstout]

Back to Back: I interpret the card as making the square temporarily work like the Cornfield for each hero in it. Any zombie trying to attack has to roll said 4+ before the fight can begin -- failure results in the fight not occurring. If the heroes instigate the fight, the zombies get their roll.

Catch: There's nothing to indicate that Catch wouldn't work with the horsie. Maybe the item just represents the carrot on a stick? In my most recent game, someone used the horse AND the "go through walls" card at the same time. Effectively, she jumped the horse through the window.

Plague Carriers: In most scenarios, I believe they do. I don't have the GH rulebook handy to verify for sure. I'd read there.

We've Got to Go Back: She'll still start with her items. Selecting the six bonus cards is a group thing. It's just saying that Jake's ability won't work (AKA, it's not draw 12, keep 6.) No one else has a draw-affecting ability at this time.