DarthVader css is a good mod but between the mods needed for the iss and the css when it comes to starting the game it crashes half way way through loading iss Requirements: Romfarer's Lazor System: http://forum.kerbalspaceprogram.com/...%28April-17%29 Used for CanadArm2. Without it, it won't even appear. Lionhead Aerospace ESA pack: http://forum.kerbalspaceprogram.com/...s-Pack-updated Optional, but recommended. Contains the Advanced Transfer Vehicle, another resupply ship, and it's LV, Ariane 5. MIR Space Station pack (see above). Contains Zarya and Zvezda parts. Technically optional, but highly recommended. Without it, you can't build the ISS, though the last Space Station Freedom concepts might be manageable. Component Space Shuttle: http://forum.kerbalspaceprogram.com/...d-IMG-heavy%21 A Space Shuttle mod. Useful for bringing modules up and assembling the station. css Requirements: Space Shuttle Engines by Dtobi: http://forum.kerbalspaceprogram.com/threads/55985 Engine Thrust Controller by HoneyFox (link from his signature, no release thread):https://www.dropbox.com/s/hb51rhkgdz...troll%20V2.zip Romfarer's Lazor System, or any "lite" pack with his plugin:http://forum.kerbalspaceprogram.com/...b-%28Dec-19%29 Smokescreen by Sarbian: http://forum.kerbalspaceprogram.com/...nded-FX-plugin Firespitter by Snjo: http://forum.kerbalspaceprogram.com/...=1#post1222092 ModuleRCSFX by Ialdabaoth: http://forum.kerbalspaceprogram.com/...TS-based-FX%21 RealChutes by StupidChris: http://forum.kerbalspaceprogram.com/...1-0-1-27-04-14 but still it a good