i, personaly, haveint played the game much since black ops and ACB but when i did play i never fell thru the map....ever,sooooo i cant relly say much about it, but my brother did tell me about something funny he found,
ok so he was in the starting area(for some resson, i dont know why) and he was fairly high level at the time and he sed
"ya know what, i haveint been up in that area much yet"
so he started going north west and he came across a cave kinda area with a bunch of deathclaws out front, since he had boon with him he (boon) did the anoying thing he dose and started fireing at them so my brother basicly sed "ah crap.... CHARGE!!!" and he was fighting them for a while, and he killed most of them and then....GIANT LEG!!! apeard on his screen, so he used vats to look up, "mother deathclaw" about 4x the size of a normal deathclaw, he sed many cus words and started to atack it and in one hit he went from full helth to 2 and then he died.....
basicly the morale of the story is dont go in the genaral south west area of new vages unless your perpared =/ well i've talked anuff, if you even bothered to read this, i comend you.