Eh, this really ruins a pretty large part of Site-OT's plot twist. Not particularly the SCPs or the breach but the Chaos Insurgency being inside the walls. I could DM you the reason if you want just it's a bit of a spoiler.
I could make a suggestion to still have them in and add [url=http://www.scp-wiki.net/scp-1316]1316[/url] into the mesh since it could act as a radio signal to call them out from a nearby location to rally a distraction.
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Sorry I -blam!-ed up your plot twist, I know how it feels when others do that, but sure I'd like to know what your plan was.