Why aren't there russian troops walking by or on top of the armored vehicles? Why cant thermal imagers detectwarm ukrainian bodies?
They were on top of the BMP, those were the guys who got injured/killed. It's super unsafe to be on the top of the vehicle.
Thermals on the move can't be used effectively, they are not drones, vision gets blocked, heat sources are all over the place too. Also, few vehicles have them. I think thermal optics also tend to overheat, so it can't be used 24/7. Not to mention, Ukrainians dig themselves into trenches and only peek out to engage. No chance to see them from ground level until they fire.
Let me mention Ukrainian ATGMs as well. For some reason, they are getting dismissed, but in my opinion they are more dangerous than Javelins in an ambush scenarios.
Why? They can be remotely controlled
without exposing the crew to enemy fire. Fire and forget is irrelevant here. Skif, Stugna, Shershen, corsair and etc. Plenty of videos of Ukrainians using them to snipe separatist positions and now Russian columns.