component based damage

ragdoll enemy gibbing on negative health threshold 

healing drop rates

arm ik and animations

melee attack when unarmed

minor movement rework

kick reworked

scoring system improved

enemy health and damages more balanced I hope

spawn triggers  and set piece activation (airdrops and swarms so far)

equipment and interaction system improved

teleporters, gravity lifts, new guns, new enemies, new levels

lots of visual and audio FX updates and additions

still need to work out average times and scores for levels to make the ranking make sense.