I have no idea what you're talking about. The only LCDs in the Abandoned Factory are messages on "Data Pads" or projections over deco console with lore about the POI.

Spitting flames or sparks would be an effect projector. Once the base is cored, check the p-menu and show on map. They will be a very tiny disk. You can also make them under the deco tab in a constructor. Flashing lights could be using the strobe/blink effects from a normal light or if its one of the rotation warning lights, those are also under in deco tab... cant remember the name off hand, but I think its the same one with the projectors; pretty sure the warning light is part of the icon.

Im talking about the POI before the effect projectors were even a thing Dyspayr. (Such an awesome addition btw)

At the very end of the old POI when you stood in that little... area? I never actually looked at the compound in GM, but it seems it was the sensor you tripped at the very end and then you would be surrounded by text that you couldnt read, but could read some words hear and there... something about silence I think.... The lights would flash, and the core would explode concluding the POI. I wanted to get that text that was used as some kind of alien language flashing around you. I assumed it was done with Projectors?

You're referring to this?
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3407591767
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3407591745

That is the RE1 version of the Abandoned bunker, the factory had a basic switch at the back of the final room.
Load up a SP RE1 game either in creative or use console code SBP. Select the internal icon (it may take some time to load) and search by abandoned. you can then spawn it in and capture the code from the various LCDs
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3407591784

I think there is at least 8 that make up the sequence. The one specifically containing silence is
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3407591801

Yep, thats it. Thank you I will give that a try. Thank you!