Here's some good stuff for you 3d modelers out there (aka, not me). Andrew Cramer, who helped with VFX for The Force Awakens, released them on his personal website.
http://www.videocopilot.net/blog/2016/05/free-star-wars-model-pack/
Relevant Reddit Topic: https://www.reddit.com/r/movies/comments/4hxeei/so_a_guy_who_helped_with_the_vfx_for_the_force/
Sadly i do not know how this can help me in Battlefront 2 modding?Can i convert the effects somehow to .fx so i can use them? :D