What is the Lady Liberty event?

h8z8

When I open the forum post I get a request rejected message. The post is broken.

So what are the requirements for it?

skyyblu

Complete 5 Games on any of these maps to receive a Flag Rifle Crate! You can repeat this for up to 5 crates per day!

San Francisco TDM
Chicago EM
Alaska EM
Western EM
Pier 39 Suppression