I dont play trials, but here are a few common sense tips that would help. Avoid tilt. Try to mentally reset each round, and approach it with the same intensity that you would the first round. Whether you are up or down in the game. Dont "yell" at teammates. If you are losing, they are too. Think what you can do better to work with them rather than what they are doing wrong. Play your life, and help keep your teammates alive. If a teammate goes down, often the enemy will have a mental edge and collapse on the remaining players. Avoid playing alone, good teams will recognize that one player is separated, and isolate them further and get an easy pick. Provide aggro/covering fire. Standing far behind your teammates, without engaging turns a 3v3 into a 2v3 despite you being there. If you are not engaging at all in the battle until after 2 teammates are dead, then you are not contributing to chip damage that can make a difference. Think about the weak side of the positioning. Forward players will have their eyes focused on what is in front of them, and are less able to cover their side. Watch their side angles and protect that weak side while they rotate. If your team gets an early pick, rotate to protect the res. This is often more important than the zone if it is early in the round. If your team is already capping the zone, then try to cover the res but dont leave the teammate stranded on the zone to do so. The enemy will either need to play the zone or the res, and if its 3v2, its actually 2v2 with one player on the zone. Only one player needs to be ON the zone, the other two should cover the angles of approach to the zone rather than stand on it with them. One good grenade could wipe the zone out.