Atomic Science no longer crashes the game but causes some annoying issues. Atomic Science results in the inability to craft essential pieces of equipment like heavy duty and cannot make steel for steel plating. It also makes it so copper and tin ore cannot be smelted, and must first be broken down into dust before being able to be smelted. This has been an issue since build 653 and I was really hoping it would be fixed by now. Its just atomic science, not ICBM, not MFFS, not Mekanism, not any of those. Turning off BC in the GC config will render the mod unplayable in a survival sense which is what my server runs off of.
Forge Client Things: http://pastebin.com/DeTtCV8X
Forge Client Things: http://pastebin.com/DeTtCV8X