So I was trying to play in the afternoon, and lost twice, with close to bottom fragging. I went for a \~1.1km jog, and played an escalation like 3 hours later. My gosh, the experience hit different. It was like I was a lot more alert, and...

For context, they were able to distinguish enemies at one point with red outlines through walls and allies as gray. How does this work and how is it possible?