Minecraft vanilla works just fine, download minecraft forge, opens just fine. I move the file (too large or i would attach it) into my .minecraft, which overwrites the config and mods folder. I open the launcher under Minecraft Forge, which starts opening the mods on screen. Once it hits step 3 out of 7, the game crashes with "
GAME CRASH
An unexpected issue occurred and the game has crashed. We're sorry for the inconvenience.

CLOSE"
I ran it with the output log, and copied the 2 errors that showed up:

18:42:12 LaunchWrapper main error A critical problem occurred registering the ASM transformer class am2.preloader.AccessTransformers
java.lang.IllegalArgumentException: resource AM2_at.cfg not found.
at com.google.common.base.Preconditions.checkArgument(Preconditions.java:148)
at com.google.common.io.Resources.getResource(Resources.java:229)
at cpw.mods.fml.common.asm.transformers.AccessTransformer.readMapFile(AccessTransformer.java:118)
at cpw.mods.fml.common.asm.transformers.AccessTransformer.<init>(AccessTransformer.java:101)
at am2.preloader.AccessTransformers.<init>(AccessTransformers.java:10)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:408)
at java.lang.Class.newInstance(Class.java:438)
at net.minecraft.launchwrapper.LaunchClassLoader.registerTransformer(LaunchClassLoader.java:88)
at cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper.injectIntoClassLoader(CoreModManager.java:108)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
18:42:16 net.minecraft.client.Minecraft Client thread error Couldn't initialize twitch stream
I do not suspect that the mods are conflicting, since my other friends are using the file mentioned for their server and running it without major problems.
Any help is appreciated