This is the end of L4D2. Your last campaign. Your last chapter. See the best part: Campaign 5: The Parish - Bridge. Stock up on items and heal up. Climb the ladder and you should find some more medkits and weapons to take. Open the door and head outside. Use the radio on the ground to hear your situation explained to you. You will have to lower the drawbridge and get to the rescue chopper on the other end. If you complete the bridge sequence in under 3 minutes, you will unlock the "Bridge Over Troubled Slaughter" achievement. Time starts from when you hit the lever to start lowering the bridge. Make sure you do not have any AI characters alive when trying to attempt this, as they will most certainly get bogged down by either the environment or enemies. You will not have very much time to pick up weapons or heal, so keep damage and ammo expenditure at a minimum. For more info, watch the whole gameplay.
This is a L4D2 walkthrough for Campaign 5: The Parish - Bridge.
Mahalo's Left 4 Dead 2 Walkthroughs are more than enough information for you to play the game yourself, and they teach you everything your need to be prepared for when playing yourself. These videos contain tips for obtaining campaign achievements, fighting the infected, using the new weapons and items, and moving through each chapter. This video walkthrough focuses on Campaign 5.
Left 4 Dead 2 by Valve is the action-adventure, horror, first-person shooter video game playable on the Xbox 360, along with Microsoft Windows. L4D 2 is the direct sequel of L4D and is set in the zombie apocalypse. The game takes you and your friends through the cities, swamps, and cemeteries of the Deep South, from Savannah to New Orleans, across five expansive campaigns. You will play as one of four survivors armed with a wide array of classic and upgraded weapons for ultimate zombie killing.