*EDIT*: In a freeze frame of the second clip I noticed you can see an additional player in vent so this is not limited to Astra and instead shows multiple enemy locations. While in Omen's "phaser" mode to place smokes, you are able to see...

im new to valorant and my teammates keep mentioning Eco but i dont really know what they mean by that and what it does, impact wise. if someone can let me know that will be great!