I once came across a team that was working together so well you'd think they had voice chat. No matter what anyone in my team did, these guys would just destroy them, and they were all moving closer and closer to our spawn point, having covered all the ground behind them. Anyways, their strategy was all offense, and their weakness is that they didn't pay attention to the ground behind them. I snuck past 'em and inked up over half the map behind them while they weren't even paying attention. I won the match for my team.