Your teammate told you that guy was chasing you from behind with a shotgun for a reason! Many players will call out information or hear it but not use it to their advantage. When you’re in a game you should have a “mental map” of the level you’re playing and teammates' information should change the way you see the landscape. If a teammate tells you that “two enemies are going to rockets”, you, or some combination of your team, should deal with that fact or at least be aware of it. There is nothing more frustrating than a teammate who won't talk or listen.

There’s no definite way to go about dealing with information you receive from your teammates, but it all comes down to communication. As an individual player, you can position yourself advantageously if you’re using the information provided by your team. If everyone is communicating, most, if not all, of the enemies should be spoken for during a game.

Timing power-ups comes down to using information from your teammates. If they pick up an invisibility at 8:00, then everyone on the team should know that it is going to be respawning at 5:00. Someone on the team should make sure everyone is aware that the team needs to be in a position to fight for that invisibility. Just knowing information does no good if it is not put to use.

The best way to practice using the information communicated to you is by making a conscious effort to base your in-game decision on what your teammates are telling you. You can even go in to Halo 3 matchmaking and just find a few talkative kids and then navigate the map based on what they are telling you. If they call out “two going to rockets,” situate yourself in a way to kill the enemies going to rockets. As time goes on and you find a solid set of squadmates, you’ll begin to mesh all of your communications together into a solid, organized approach to each and every game type and situation. In Halo, the best players and teams are the ones who know how to communicate and use communicated-information to their advantage.