By the "Ketch" ship from one of the missions on venus, the area beside the ramp to go into the Ketch to the right where all the blue is, is not restricted and so I constantly get knocked down here and then when I try to commit suicide with a rocket launcher or grenade I respawn right back there and during a bounty or mission this is anooying if I have to leave and come back. It is nearly impossible to get back up and can take about an hour if you get knocked down there. I ended up under the map once falling infinately trying to get out.