Now first off, no I haven’t found any easter egg but I have a strong feeling that there might be one hidden on the map Live Fire. It feels like they might have hidden one there but I don’t know for sure. Why I say it’s a possibility is because it seems weird that some doors that are either locked or open have some numbers on them, I found this combination 07-9-05-8 (not in that order).
This is probably just random and nothing at all but I like the possibility that there could be something behind either of the two only doors which have the text on the access pad “Access Closed” or somewhere else in the map. Anyway if this is nothing and I have wasted your time then I could tell you one thing you probably didn’t know, you can destory the Pelicans on Live Fire (most effective with sniper rifle).
Edit: There are bullseye targets (about 10 in “suspicious” positions which I could find) around the map, some in locked doors and some in open areas. It could also be nothing or something.