Talk:Banshee (Warframe)/@comment-68.32.96.198-20130509012010/@comment-3464383-20130517044208

You dont have to kill the marked enemies. For example you can use it on bosses over and over. The effect of Sonar is to MARK the weakpoints for the team to score critical hits. However the weakness is renewed everytime you use it again, and WILL DISAPPEAR after the time is up, i.e. you need to recast it again in order to see the weakpoints, and it varies from time to time.

You probably used Sonar in a room with turrents and camera. That's the same glitch I've encountered for times now.

I need more people to confirm this :(