Engineer x Engineer - A Little More Gun, Engiecest/Engicest, Hoe-Down, Engineering Majors, Cream Gravy
Engineer x Medic - Science Party, Glasses And Goggles, German Engineering, Strings, Mechanical Heart, Bioengineering, Smart Boys
Engineer x Sniper - Trucks 'N Vans/Trucks And Vans, Outback Steakhouse
Engineer x Spy - Napoleon Complex, Practical Espionage, EngieSpy, Reverse Engineering, Spengie
Engineer x Miss. Pauling - Square Dance, Enginauling
Engineer x Merasmus - Summonin' Up A Sentry, Magic Of Science