Yea, my main concern was more in the fact that forcing players to take a linear path where they can only move backwards or forwards when both entrance and exit are visible can be dangerous as it traps players in that space and makes them vulnerable to the indirect damage of explosive spam. Most deaths on the 2fort bridge occur at each end and as a result of rocket/grenade shots rather than on it and by any other weapons (save perhaps snipers). So it doesn't really matter how much cover is on the bridge as that's not where the primary danger lies.
The danger is in the fact that enemy players will see you enter the bridge and wait for you on the other side and the only option is to purposefuly spring the ambush and push through it or retreat. You can see the brighter blobs at each end.
If there's an alternative route then ok, i just thought i'd bring this gameplay to light if it wasn't already apparent.
I await more screenshots!