Europe
Countries in Europe generally have stop signs with the text stop, regardless of local language. There were some objections to this when introduced around the 1970s, but now this is accepted. Turkey (and the unrecognized Turkish Republic of Northern Cyprus) is a notable exception to this, instead using the Turkish word for stop: “dur”. Stop sign - Wikipedia
A rocket research campus seems like it wouldn’t be a high priority target, as opposed to the factories where the rockets are being made. Could be sabotage, but who knows.
Fire in a rocket manufacturing facility is a big deal. [Funny, I think I wrote this exact thing about boats last week.] I started an aerospace job after several people were killed in a fire that started when they were extracting a core from a rocket motor.
In our building we had a pellet press that would occasionally cause a fire. I think it would only involve like a pound of material but it would make a bang and bring a little dust down from the ceiling. Everybody knew what it was and we’d all mosey out and down to the assembly point to wait for the fire guys to show up and confirm yep, the press went off again before we walked back up.
Anyway, it doesn’t look like the fire in the video could involve a lot of rocket fuel or components. There are too many nearby buildings. That would be poor siting.
Hard to compare this war with Vietnam. If we make the large assumption US quoted their own deaths accurately, they were just mainly pushing napalm bombs out the back of planes at 20,000ft so of course causalities might be lower