Kane & Lynch 2: Dog Days

Very easy in arcade mode. Play any level and loot as much as you can. Now start killing your team and pick up the money they drop. Do this on round 1! Now as soon as you have 2 million allow the others to live and escape. You can then just run to the van or chopper and escape.

i did this in radio tower simply get at least 2mill go to the van with any team mates when the last ont thats close goes to get in take him hostage to become a traitor, wait for the van to go realese and kill him n jump in the next van, if any team mates left alive after you do this just kill them befor you get in the van, wait for the last second before getting in

I got this achievement on the Airport level. Once you enter the parking garage, shoot the gas canister next to the plane in the room to your left to take out a group of enemies. Then go into this room, where the loot is located, and kill a couple more enemies in your path, leaving some more for your team mates to take care of. This gives you a head start in looting, allowing you to more quickly accumulate $2,000,000. When you're running to the evacuation point, find a team mate who's alone, so no one else can shoot you, and take them as a human shield by pressing . Then quickly press again to execute them. This instantly makes you a traitor. Your other team mates will soon be outside waiting for the helicopter to arrive. Taking cover behind the door leading out onto the roof protects you and allows you to take out your remaining team mates more easily. Once you escape you'll get the achievement.