Finish your own sentence then.
I was planning on doing the mod like so:
During the “Resonance Cascade” Portals start to open and the system goes into overdrive, to stop the core exploding the scientists shut down the whole facility. This leaves the defence systems down and an alien gets teleported in and goes undetected. Once power comes back on the blast pit chamber does not open and when you manage to open it, it opens for a couple of seconds where the alien grabs a scientist and pulls it into the chamber. The lab is then deadlock sealed. You need to find a way into the chamber and kill the monster, but everyone that helps you starts to disappear.
It would be a no combat mod and if anyone thinks I should go ahead with it and wants to help, then I will set a site up tomorrow.