Why do we have 2 of them?

One large map cut in hlaf to maker two, I don't like Dark maps though.

In objective modes they're combined to form "Libery Island"

I guess they found it too big for 6v6 TDM, so chopped it in two for the final release.

When ever I play 'crash site'...they put these two maps together to vote for before match starts...it doesn't matter which you pick...they're the same. When I first started playing I always got them mixed up.