I will leave you with some jot notes:
-Aim for the head, always have your reticle at head level.
-Always check your surroundings. This includes behind you, in front, and beside. Especially be cautious and go slow around corners.
-Avoid open areas. You are a sitting duck for snipers.
-Learn spawn points. You will want to know where the enemy will be. Best way to do this, go to forge, select a swat map, and look at all the spawn points.
-Control the high ground with your team.
-Control strongholds. Example, the yellow lift and bridge on sword base. Make sure you have your team with you for this.
-When facing down more than one enemy, careful not to panic, and keep your shots paced. Accuracy is key. They will likely spam you, so with any luck, you will be the winner.
I hope these points helped. I look forward to playing with you in the tournament!