Increased difficulty of multiplayer spawns (modified by number of players). Playthroughs were still easier with having more players in an attempt, this gets it much closer to being in balance.
Heavy game size optimizations - After this patch, the game should take up 1/3 less harddrive space.
Updated boss levels to offer 3 possible elements to upgrade.
Overhaul of sound and music balance and dynamic range.
Added new "getting started" video
Fixed issue where player skin could be semi-transparent.
Mech AI updates to Scorpion, Javelin, and Colossus - Added agro swap logic to make them more of a threat in multiplayer.
Mech Javelin and Colossus - Added chance to swap target after a reload is triggered, mech gets quick reload when changing targets.