I was playing ODST today and in the mission Tayari Plaza i got to the part ehere the dead elites are and i heard two clanks like something hitting an object. I then reloaded the checkpoint to see if i could hear it again. I did and it turns out there was a tanker truck in front of me and when i looked at it i saw it moved like there was something inside it. Also i noticed on the back of the truck there were holes which to me look like air holes. For something to breathe so my theory is there might be something in there.
I would love to hear thoughts an opinions on what this could be.