The medical healing station that can be placed on the ground can be placed inside solid objects inside a couple of places on maps. People have found these locations and are using them to exploit the locations, this makes the healing station indestructible. There is one on the chapel map, near where the EV finishes, in the boxes across from the final location. There is another location on the Terminal map, under the vehicle near the capture the flag location. These locations are being used regularly, there may be more.
[GAME BUG] Medical Station can be placed inside objects, making it indestructible
This is happening more and more on the first part of the Terminal Map. Defending teams have found a way to exploit this near the area with the vehicle and the capture the flag. The health station falls through the map, and stays there forever, giving the defending team a big defensive bonus.
Really great that you found these spots! Though I would advise to provide screenshots, as I can understand it can be hard to explain these spots. 
I’ll try to grab a screenshot. I’m unclear if the health station is in the vehicle, or falls through the map. When it happens, it is there for the whole map, it doesn’t go away with time or damage.
It happened again on the the Bridge map tonight. First screenshot showing the enemy medic station, gone, but still works.
Second screenshot five minutes later, still there. It never left during the map
I had a health station destroyed in the door of Underground (first objective)… Though, whenever I stood next to it, I didn’t get any health…
Actually these are bugs. Sometimes when you destroy a healing station the aroma stays there. You cannot actually put it under, it’s just a bug when the aroma still stays when the station is destroyed.
Maybe a more important question… Does it heal you when it’s destroyed?
Supposingly I would say you do not.
Wheter it is healing you or not, the circle stays annoying, as it distracts your eye… >.>