I just put this one here in the attachments.
@LIVEWIRE. (I cannot send you back that pm because your inbox.)
If you download the rmf and look carefully , you'll see that it's done with vertex. Even that thing from upper middle it's vertex too. I am not sure.. but if you were a little experienced, you should have seen that by now. I used carve about 1/2 years ago and since then i never used. (in official maps)
@SRRY FOR POR ENGLISH