The way it used to work was that if you had 5 or more rebels working a job, that region was vulnerable to that kind of raid. You could stay safe by running only 4 rebels on a job UNLESS one or more of those rebels was secretly a Faceless infiltrator, because they counted double towards spawning raids. This new description of how raids are generated does not mention Faceless. How do they influence the situation? Do they have a higher chance each day to be "detected" by ADVENT? Guaranteed to be "detected" every day (i.e. reporting to handler)? Perhaps they fill up the bucket even faster than a detected rebel? Will this make purging the Faceless from your havens more or less strategically important?Retaliations (and mini-retals) will occur according to a different mechanism: every day you have a rebel on a job, the rebel has a chance to be detected by ADVENT. That chance is impacted by difficulty level, regional vigilance and alert. If detection occurs, a global bucket to trigger a retaliation gets a little more full. (There are buckets for each rebel job except hiding and a master bucket for full Haven retaliations). Once a threshhold is reached, a retal/mini-retal will occur and the bucket empties. They will tend to occur in busier regions. This reduces the minimum working rebels threshhold to trigger retals and should space out retals/mini-retals better. Increased regional cooldowns for these missions.
For sure the non-violent method of identifying faceless by assigning 4 rebels to each of the jobs and seeing which raid spawns won't work anymore.