the hell dining badge is easy buy the grenade launcher and upgrade it completely then upgrade the wall and then upgrade the rest on gunmen. when you start just start rapid fieing into the crowd and the ones you dont kill your gunmen pick off.
good tip for everyone to know: when sketching left click and hold and at the same time right click them move your mouse outside the game screen and then click and the gyro will stay put and keep spinning so you dont have to hold down the mouse button