You'll end campaign with one of predefined outro. This is list of possible endings:
War that never was
It's optimistic one. You are going back to Khe Sanh. Prizrak is dead, NAPA and CDF are allies, and deported Lopotev is evidence for Chedaki assassinations on Red Square.
Everything is broken. You are on NAPA side, which is conflicted with CDF. Prizrak is alive, Lopotev not. You must escape Chernarus. Drive truck to Elektrozavodsk. City is seized by Russians . Disembark and go on foot on hill to your left. There's a lot of BMP-2 moving towards street. Search for boat in harbor. Move around city and cover in scrubs near . If you see clear piece of land - run on boat with your squad!
Missing in action
Your fight was useless. NAPA dream falls, Chedaki rule the country, Lopotev is free, and you are in mess. Move ahead. You'll meet small patrol . Ignore BMP-2 and run to destroyed church. Watch cutscene .
You end it as CDF but Prizrak is still alive and Russians didn't get Lopotev Russians, which made them worried. Talk to Stavovich , get in UAZ and drive to location of NAPA spy. Discussion with Olegich  ends when Russians dropped nuclear bomb on Chernarus.
Prizrak escaped. But deported Lopotev gave Russians necessary evidence.