Original sentence: Each campaign typically lasts between 35 and 75 minutes depending on the difficulty level, and the game mode - with Versus games taking approximately twice as long.The Smoker, an infected that ensnares survivors with its long tongue at a distance and, upon death, releases a cloud of smoke that obscures vision - and, in some modded servers, inflicts damage to those caught within it
Edited sentence: Each campaign typically lasts between 35 and 75 minutes depending on the difficulty level.The Smoker, an infected that ensnares survivors with its long tongue at a distance and, upon death, releases a cloud of smoke that obscures vision