http://starwars.ea.com/starwars/battlefront/forums/discussion/16721/star-wars-battlefront-dec-10th-patch-notes-pc%23latest
The below patch notes apply to PC only.
Miscellaneous Updates and Tweaks:
Added Dolby Atmos support for PC players
Fixed an issue where one out of 12 players remained in the loading screen on Swamp Crashsite, Sorosuub Centroplex, and Graveyard of Giants in Heroes vs. Villains and Walker Assault multiplayer modes
Fixed an issue where two players would spawn in a damage area that doesn't match visual lava
Walker Assault Updates and Tweaks:
Increased AT-AT health on Endor
Hero Updates and Tweaks:
Removed auto-lock on Boba Fett´s missile.
Weapons, Gadgets and Star Cards Tweaks:
Tweaked impact damage for Impact grenade from 100 to 90
I knew they'd increased the AT-AT health on Endor. Up until the patch, as there was only one AT-AT there, the Rebels would often take it down at the second phase bfore even getting it to the third.