I think NP1 was much more conducive to backstabbing because of the speed technology.
Since that was the original format of the game, I think the expectation for betrayal was higher. Likewise, I think that the description at least for NP2 could probably be edited a little (haven’t seen any descriptions of proteus yet) to help new players know what to expect. Certainly the description applies to gameplay for NP1, but I’m not sure how well it fits NP2. At least in regard to how people actually play.
