Yeah, I thought about that strategy too. It requires fully trusting 2 players, then the Shocks cannot win.
Another strategy is to pick out a player, and one by one ask everyone whether, based on their word, they believe that person is on their team. This way, we could grind through everyone and weed out the Shocks right away.
This is shock's first game though, and I wanted to try out my language skills, so I would not do the gamebreaking.