Okay, well i saved before i killed Dimitri so i have both endings. The first one i did was to save Dmitri because i heard it gave you more money. So i do it, g to the wedding, Roman is killed. I go get revenge on him agian and get in the boat. I get around the bend where Little Jacob comes in the Helicopter, but i cant get under him in time. Im not even sure what im supposed to be doing. I get in the boat is fast as possible, but he always just leaves and the mission fails, what should i do?