* Tunnels!
* New multi-deck Sulaco!
* Corporate Liason job!
* Sticky resin!
Plus a whole load of balance tweaks and bugfixes, including:
* Nerfed Queen, damn was she powerful. Shriek sound fixed as well.
* Xeno health regen lowered in general
* Queens, Ravagers, and especially Praetorians now have armor deflection that scales with damage. Use high damage weapons to penetrate their armor more often - M39s just won't cut the mustard anymore.
* Grenade launchers can now carry 5 grenades, and stop you from shooting anything less than 3 tiles from yourself.
* Specialist defense armor relocated to their "premium" item list - but are seriously buffed, and come equipped with 2 on-board tricordrazine injectors.
* Hugger infection time and paralysis tweaked, symptoms show up later, disease progresses slightly differently - you can hide it from people longer now.
* Survivors should now spawn with flashlights.
* Engineer and Specialist rooms are separated.
Plus..
Wait for it...