This is phase one. We don't actually get to Teth at this time. The point of infiltrating each access point is to take these--*holds up some USB-like devices* and put them into each undamaged access point. Mild environmental damage is fine, because the server has auto-repair capabilities. There are not many civilians; mostly guards will be there because of Teth. The only real obstacle in getting to the access points is the guards—not physical obstructions. We just have to get into each point, plug in, guard it while it's working, and get out. I apologise for being so unclear. I hope laying out the details like this helps.
And regarding the guards?