I noticed if two UAV defrosters are called really close to the same time, the first one stays up for the entire round, even after shooting it to get the uav defroster destroyed message. For instance, Gump was on one team and called a uav defroster, around the same second I had pushed the kill streak for uav desfroster, so mine went out as well. I was able to then shoot gump's defroster, but after the message saying it was destroyed (and the explosion fx) it kept going for the entire round. Gump was even able to call a 2nd uav defroster while the first glitched one was still going. I guess only one variable is being used to track it and mine being called 2nd overwrote the data for his?
Also, side note, on map mp_disputed, on Sunday or Monday, I used a tactical nuke, and it crashed the server just before it could kill everyone. Don't know if it was just a fluke, or if the map has an issue.