If you dont know a frag gernade takes out you're sheild so the best way to get kills is to throw a gernade at the ground in front of them enles you have a plasma then throw it at the're face! the best place to be is with tight hallways so if you miss then it can still bounce and hit him/her. then also the DMR even if the enemy is realy close if you spam the DMR it will do less damege . Now to my favorete the