Quickest and Easiest Features contract is ‘No Weapon, No Problem’, set in the ICA Facility.
On mission start, head to the right side of the area (as you are looking at the security hut) in the far right corner is a section of fence that you can jump.
Once over the fence, keep to the right and in the bushes. You’ll see your target and a fence separating the two of you. This fence can also be jumped.
Jump over and deactivate the generator, which will attract the attention of the target. Break his neck whilst he’s trying to fix it and dump his body into the container just behind you.
Done! Follow the route you just took back to the start. Easy.