In the Inconvenient Killer gig, you will need to get into the 7th Hell Club in Downtown and deal with a man called Mausser. Everybody wants this guy dead, but that doesn’t mean you need to kill him to finish the mission. It is actually much easier not to, and you can still get full rewards for the mission.
To get into the club, you will need to bribe the doorman with 500 Eddies. Pay the man, then make your way downstairs. You can get this gig done in a surprisingly straightforward fashion, so don’t expose yourself to risks that you don’t need to take.
Mausser is upstairs in the VIP lounge, but you can’t just stroll in there as all the doors are guarded. Instead, head for the dancefloor, then go to the right to find a stairway to the second floor. Head over to the other side where you will find a guard leaning on a rail, facing away from you. There will be a security room beside him with a worked inside. Wait for the work to move to the next room, then crouch and sneak in there. Head through the next door, where the worker will be facing away from you, and go through into the third room. Here you will find a ladder.
Go up the ladder, climb onto the lighting rig, and work your way around to the other side of the room. Go through the gap in the wall, then drop down into the bathroom. Go through the door and you will be right outside the VIP room. You can hack a camera inside, but only Mausser and one other person are in there.
Walk in, and Mausser should start talking to you. Somethings it will be bugged and he will instantly start shooting. If this happens, just reload and do it again. Keep Mausser calm and tell him it’s a good idea to leave town. He actually agrees with you, and you can hand in the job and get your full rewards this way.
He will tell you to leave, but do not go out either door. Instead, go back the way you came or the security alarm will go off, and you’ll need to fight his beefed-up security anyway. Just take the same route back and then leave the club. The last thing you need to do is pick up your Eddies from the nearby drop point.