
The floors
are interlocked where it's necessary (and so is most everything else). The beta version that I built was non-interlocked, and as a result from many play tests I found where interlocking the floors would be beneficial for grenade throwing and movement. The double blocks only overlap each other by the thickness of a wooden bridge, which is enough to keep grenades from falling trough the cracks and at the same time minimizes the z-fighting that goes on when you interlock on Sandbox. I assure you this wasn't some half-assed job. Go back to your bleach.
EDIT: Holy shit, Wesley Snipes hates my map.