One thing i have noticed is that if u stand a certain way towards to the bunker, there is a orange glow to the door. I believe that the counter does involve part of the the Easter egg and I'm thinking its the number three. I also think that round three something is done for example...the sign on the bottom of the nuke town sign are in a order....what if something haves to be done every round....another thing I noticed that was brought up was the LSAT....when upgraded it spells FSIRT. de scramble the word LSAT and it spells LAST. De scramble FSIRT and it spells FIRST. Just something I noticed.