I went to the house that has the 9mm AP SMG schematic in it, and got into a fight with some Lynxes. A couple of them shot fire at me. The fire never went away. I was in the area for at least a few minutes total.
In the screenshot below, the few clusters of fire on the right were generated by a Lynx that tried to roast me early in the fight. After I killed it, the fire just continued to burn there - that seemed odd. Then I ran around a bit, went in, checked the schematic, and came back outside, got into a second fight, and the further away patch of fire (a little to the left of center in the screenshot) was generated by another Lynx in that second fight.
So… is this a new glitch? I hadn’t seen it before. The fire just stayed there burning… probably for close to five minutes before I logged out. How long is it SUPPOSED to burn??
Good gaming!