I hacked this with a different way, but a bit easier too. I hacked the money meter in mission, kept the value remembered, and after the mission completed screen came i changed that value back to something like 40k and it worked. Just leave the addres there, because it changes back to normal at the mission completed screen and you have to change it. Remember, at first search search the actual value, and at the second search 1 lower than actual. And as said in this thread before, dont hack too big values. What makes this possible? I think the client holds the mission reward data and sends it to the server, its not server sided.