User blog comment:AnonymousTom/Caspian Border Map Coming to Open Beta?/@comment-3564634-20111001060203/@comment-2224289-20111002134650

@Yuri made a bit of a research, they're getting on the feedback and changing the coding to fix them, but the majority of the fixes are only going to be seen on the final release version. Apart with that, only patch they made during the Closed Beta was remove hill destruction from grenades and C4 (hills of Base 1), as peeps were getting a bug that let them crawl under the map