Michelle winced as multiple people were struck by the Immortal. The "trap him in a wall" tactic seemed to work for a moment, but it was only a matter of time until he broke free. Michelle had been careful to maintain a safe distance, but she couldn't stand not doing anything while her team was putting in the effort and taking the hits. Michelle took out a pair of earplugs, which she always kept with her in case of firefights, and put them on. She would especially need then now. 

Taking a second to aim, Michelle fired her gun, the bullets merely bouncing off the back of Immortal. If he felt them, he didn't seem to show any sign of it. As to be expected, of course. Michelle then ran towards him, firing short bursts at a time. Bullets went flying, and the Immortal turned around to see what was causing the disturbance. At the same time, though, Michelle was pulling the pin off a flashbang and tossing it towards him. Michelle turned away to avoid experiencing the worst effects of the flashbang as it exploded. She had no idea how effective that would be, but she doubted the Immortal would be completely immune against it.