ive also noticed this on a bunch of those houses (the ones that the devs made, not original BF2 models) at umm, the map is like Khal Asad or soemthing like that. For example you can get underneath stairs in some of those bldings and wall-glitch, i funny thing you could do and get inside a wall and shoot out but they can shoot in. (Lol, most popular on Strike at Karkand.) I see the possibilty for people to say, put a rally in a blding and 1 sq member can guard it while the rest of em harrass the enemy and they would be difficult to remove.
I dont have any Screenshots but these little "holes" in the walls are in almost all othe those building. (lol i remember one on th back of an over turned table its the perfect cover

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