In the house with the burning cows in front of it (the oragne marker) the back emtry room has a trap door near the center of the room. Press e till you find the door and it opens. Climb down the ladder and open up the steel door and boom, you're in the survivor bunker! the button on the left will lock the steel door and the button on the right unlocks the door. Also in the church there is a large trap door on the left when you enter the large part of the broken wall. Trap door is near the rubble pile on the upper left.

引用自 Cowboyjoe3：

In the house with the burning cows in front of it (the oragne marker) the back emtry room has a trap door near the center of the room. Press e till you find the door and it opens. Climb down the ladder and open up the steel door and boom, you're in the survivor bunker! the button on the left will lock the steel door and the button on the right unlocks the door. Also in the church there is a large trap door on the left when you enter the large part of the broken wall. Trap door is near the rubble pile on the upper left.

thanks man :D

I figured out the keypad code
X# - button to press and in which order
O - button not to press

X2 X1 O
O O X3
O O O
O

or in another way:
Top middle - Top left - Middle right

引用自 KING--Ender：

or in another way:
Top middle - Top left - Middle right

what keypad are you talking about? I don't remember seeing one anywhere

引用自 Cowboy：

引用自 KING--Ender：

or in another way:
Top middle - Top left - Middle right

what keypad are you talking about? I don't remember seeing one anywhere

There is a bunker at the corner of the map and it has a keypad

引用自 KING--Ender：

引用自 Cowboy：

what keypad are you talking about? I don't remember seeing one anywhere

There is a bunker at the corner of the map and it has a keypad

I'll have to look for that! Sounds cool!

why not post a video or a screenshot so its can be easy to find ?

this is cool info!