Funny, I also did not enjoy Swen killing Nick's character in the Grymforge playthrough and getting so excited about it. I did not get a D&D co-op vibe whatsoever. It was awkward to watch.
I also did not like Swen's playstyle with heavy metagaming. Sneaking into places and stealing stuff the characters didn't know was there. I think devs should discourage such playstyle and try to keep things fresh and exciting rather than teach players to metagame an RPG. Perhaps he is too familiar with the game at this point. But metagaming is the opposite of role-playing, and this is supposed to be an RPG.
