You wouldn't like our Adam when he's angry. You wouldn't like it because you can't tell he's angry. Capcom releasing Resident Evil 2 without local co-op support, despite publicly advertising the PC version of their latest zombie-botherer as having it, is the closest I've ever seen the lad to angry, and he was still as calm as Hindu cows. One day I hope we'll rile him proper. Except now he's even calmer, because Capcom have come out and apologised for their apparently "unintentional error."
In a statement, a Capcom spokes-entity wrote: "We apologize to our Resident Evil Revelations 2 PC players who purchased the game and expected to have local co-op as a feature. The feature wasn’t intended for this version and that caveat was mistakenly omitted from the product description on the Steam page earlier, and then included as soon as we were made aware. This was an unintentional error and again, we apologize for the confusion this may have caused."
They also reference mysterious plans to make good on this, but whether "potential solutions" involves retroactively adding local co-op support to the game or providing some sort of Assassin's Creed Unity-style apology DLC we don't know. There is a season pack thingy planned, so maybe something will happen there. Watch this space, I guess.