Easy achievement nobody has made a guide for?!
Go to Venus > Fossa Assassination Mission
Play the mission as you would normally until you get to the room where the boss, Jackal, is at. Fight it and destroy it taking any rewards you can. Then simply extract to your ship as you would any normal mission. Don't die, if you do have a friend revive you or use a revive if you have one and don't need it for something more difficult. The boss isn't terribly difficult so you should have no trouble. The Jackal's weakspots are its leg joints, shoot them to make it lower itself then deal heavy damage overall.
Good luck! Have fun! Farming this boss/mission give you parts to build the powerful Rhino warframe. Love it.