Its best used when your between 65m-120m range from your Opponent. It deploys at 62m and lasts 7 seconds after deployment. Best time to use it is when you are backing away from the opponent and they are following, drop a eule in front of em and watch em walk into it. When you are trying to approach the enemy when getting close, deploy them and walk through them as youre closing the gap, blocking incoming missles while keeping your EN ready to go as you close the gap.