Yes, The Last Dose. It was hard as shit. 3 waves of enemies come from each direction of the warehouse, with helicopters overhead. I ended up following Dax outside and made my way over to the middle area where the SUV is. Took me a bunch of tries but I finally got through the 1st one.
The mission that is impossible right now is from the Casino series and it's called Strong Arm Tactics. That one has a ton of enemies with helicopters that don't miss. I watched a video of someone completing it. He's got better weapons, switches between guns and rockets, then drives the car taking a short cut to get away from everyone. I can't switch weapons fast enough, or eat the snacks or get more armor that fast. The dude in this video is lightning quick.
Here's a tip if your phone is going off with too many calls. Go to Settings, Notifications, and set the time between calls to 15 minutes.
I made enough money to buy the 2 remaining MC businesses to get my nightclub warehouses up to 5. I'm up to 4 million. Now I need the weapons the dude has in that video above. I have the Widowmaker laser, but it's hard to shoot enemies because it's held so low and doesn't hit enemies that are hiding behind boxes. I won the podium car of the week on the spin, Pegassi Infernus Classic worth 975k.