Trying to search details from the screen shot.
Virginia Film Office Casting page has no casting for HEAT or mass casualty training in the past. Only goes to Jan 16, 2010.
https://www.film.virginia.org/hotline/category/castings/
Only training in Amissville VA is regularly scheduled OSHA hazardous worker/first responder type training. No mass casualty or HEAT traing was listed.
airtable.com appears to be a spreadsheet and market data sharing network
shaun irving - actor listed on imdb
shaun irving - Orrio Strategic Marketing, Richmond VA linkedin page https://www.linkedin.com/in/shaunirving?trk=public_profile_samename_profile_profile-result-card_result-card_full-click
Also found websearch post yesterday from "godlikeproductions" forum that reads:
Holy Shit ! Crisis Actors Needed in Virginia! Here we go …
https://www.godlikeproductions.com/forum1/message4239368/pg3
1 day ago · The point of this thread is to claim that there's a call for crisis actors. The point of contact for the ad is a Mr. Shaun Irving. He was alerted of this thread. His response was to argue (with sarcasm) that everyone knows crisis actors get paid $50-$70K/day/actor.
Have seen other material posted without links to authenticate that appear about the same time as mdiscussed on forums like godlikeproductions. Typically cleverly crafted documents as a LARP. Since there is little internet trail for this "training" and "casting call", I say it's a LARP.
Thanks ANONs who searched and tried to find more without results, further indicating this was a LARP to discredit the 2nd Amendment rally on Monday