ok i was playing in the combat training and noticed the mail boxes have mason, woods ect ect on them
also if you get the all the heads the rolling stones Sympathy for the Devil starts playing.

but what does it secrete?

Hate to sound like an old grouch...but I wish they would spend less time on stupid stuff like this...and more time...possibly making a server browser that worked for a change. :/

Alas, there is always time for Easter Eggs as they are usually done by different folks working on the game.  But, perception-wise, I fully agree with you. It doesn't look good to see obvious bugs and then hear of stuff like that.

The other Easter Egg on that map is the shoot all the manaquin heads in a very brief amount of time (not sure how long you have but it was hinted you have to have a coordinated team do it).

Game developers should spend the time and labor cost developing and release complete, ready to play games not just fancied up Beta versions to get the money rolling in.  It's kind of like BFBC2 being release without the ability to go prone.  How is that in a combat game?  Plenty of other complaints on the last 3 games released too.  Will have to see if they release some bigger maps or not.