Three Day 2x EXP & Drop Event

Expected, but could've been better imo. 2x events are good, but it's going to be pretty hectic with the aliens roaming around on most of the maps right now, mostly the ToT maps. Alien mob spawn is fixed as it's not overflowing the map, but you can't get rid of them unless you've equiped one of the pieces to kill them with. Better compensation is just give us 2x cards with the event? ... but that's just wishful thinking.