Thanks to @Solderq35 for a few advices and ideas. Bonus clip! 1:54 is possible, or try to make bin violin boost work in this route. It's easy to run to the school window without being spotted with no distraction shots. More delay on the call means Reza is further away from school entrance. You can stop Reza from ouside the school with a distraction shot through one of the windows. Bump into that well soldier isn't necessary. For vacuum soldier you can also get away with tripple shot provided he turns away first, he won't go downstairs. Or shoot through the window while you're outside, but if done too early it'll delay other patrol. Phone interaction while standing is faster.