The campaign of Vietcong 2 is much shorter than the campaign of the original and it isn't nearly as varied and as well put together. What you'll be getting here is mostly combat against Vietcong and NVA in urban environments. It is street to street, house to house, room to room. Prepare the quickload button ;)
It reminds me of Chaser and Soldier of Fortune 2 in that regard.