There are obvious routes within the first chapter (prison) to get through without choking anyone and not get detected. I've run through this mission a couple of times and it keeps saying detected at the end of the first chapter. Now I'm guessing it's due to the explosion, in fact, I'm 99% certain. Why I'm 99% certain is due to one playthrough where it did in fact say 'No detection'. But it did count a kill, so I was gonna replay it. Is there any way at all to run through it without getting detected while not choking anyone or is the explosion just preventing that? It's all a bit silly, but then again, I played through that exact mission about 5+ times to try out various ways of preventing the detection, for instance; stand right in front off the bomb, pop some health and run asap, or close the gate before setting the bomb and then run off to the other site of the gate before it.
If there is a way to go through, whether it's glitchy or not, please tell me. Thanks in advance.