Game stalls while loading, unsure as to the reason.

I'm trying to load a modpack given to me by someone using MultiMC, and when it starts to load it goes along fine until it hits a certain point, where it loads slower and slower until puttering out. If anyone's seem an error like this before, or has any additional knowledge as to how to deal with it, I would appreciate it.

I am using MultiMC, tried three different versions of forge, 1808, 1847, as well as 1855, all of which give me the same stutter and stop. The game loads up fine without forge, IE just vanilla, so I believe it has to do something with forge and or a mod not cooperating, but have not been able to figure it out myself.

http://paste.ee/p/J4MYx