Jamie: you can get through solid walls, it's "fine" that there are windows in firestation, but lighthouse and apartment house are bugged in exactly same way, this should be fixed, maybe priority is not so high, but it really should be fixed.

this bug also appears in elevator shafts in tall buildings, you can start climbing the ladder while standing in the hall
posible fix could be implementing some line-of-sight check?

I have no trouble finding ammo, food, drink, or anything usefull... actually 35 slot backpacks and m4s are not really that hard to find, i could agree with im_orange that they are pretty common, but for testing purposes i am glad that its not hard to find a gun