100% agree with you It happend to me in the NW airfield too, but instead of been in the firestation I was in in the airport control, I climbed the side ladders and I heard a zombie, he was back to my, but he stair up the other stairs and start running at me, so I shoot he, at the same moment I shoot I started climbing the other ladders and I was shooting zombies for a long time, (like 50 - 60 zeds) when I was running out my ammo, I decided to go down and killed a zed who was climbing the ladder that I wanted to go, then I got a remington, I go down and a horde of 7- 8 zombies were waiting for me I started shooting and I loose too many blood, then I run to the firestation I was killing zeds, I got a AKM and then I run into the forest and I lost them. So I had to choices without food, hatchet, painkiller and blood I was thinking about suicide, but I though It was better try the new IA and sneak into a town for supplies, and It have alot of fun I could succesfully sneak all the town without alert any zombie, I was crouch walking behind them, and even crouch running when they were like 30-50 ms more or less. I didn't let them to see me (because before I had the accident in the airfield I had another in the barracks and a zed spotted me crawling). Finnaly I got an hatchet, and I could cook the raw meat so I recover all my blood, and I got a painkiller, the problem is I was in a deer stand just before the server stops responding me. Now the IA is better than in the other 2 versions in my opinion is more realistic. But the only problem is that they respawn too fast and I couldn't even move. But with a good plan you can escape ( I escaped without a plan so.. :P)