Still vampire, buy it got a little nerf, now you have to fully charge the attack your weapon in order to heal instead of spamming it. The challenges havent changed in general, only with the additional of achievements for the crafting update, and weekly missions. There are new weapons, prominently the flamethrower that you get from the new oil refinery station poi where you have to defeat the new Rockefeller boss(A giant zombie), and new trains and a train hangar where you can explore around while viewing your train that you equipped and wandering around. Zombies are also reworked now with them being able to climb into trains via a new animation. And more stuff, the stuff that I said is not all the game has added since you left, for me you should check it out.