Do the main missions on the right side of the map, them umlock safe houeses on the right and do the side missions, you should hit 30 within a day
Well it worked level 8 to 19 in an hour. also got 120k cash
yes worth 20£ for single player alone
yes defiantly only had it the weekend and its ace, better with friends though
and use discord ocuk channel 



also more you have on supply drops on 1st and 15th every month ( season pass holders )