fell through the floor and can't get out

got to the damn, killed everyone on ground level, planted the C4000...and fell thru the floor, under the damn, and couldn't get out. restart at checkpoint - repeat.

so I learned to deal with the awful color scheme, and I can ignore the painfully prepubescent crap being passed off as humor...and then the physics falls apart. Let me know when you hire some grownups to cleanup after the kids.