they fixed this issue in ARMA 3.
sad that this game still has issues with walking through doors.

It happened to me couple times.

It happened to me right after I got DC'd from a restarting server.

Food/Water demands are ridiculously high.
You drink/you eat and your already hungry within minutes.
The in-game time is similar to real life time pace.
MAKES NO SENSE that you need to eat/drink as much as you do in game.

I have a OC'd i7 920 clocked at 3.4ghz.
I run a GTX 560 Ti

I get around 50-60 FPS in the wild.
Once I get near Cherno/Elektro my FPS drop to close to 10-20 FPS.
Even small sized towns I see a huge drop in FPS.

I am currently running everything on low. Only thing high is textures since my graphics cards has 2gigs of memory.

i7 920 2.6 Ghz -> Overclocked to 3.8 Ghz.
12 GBS of G.skill ram
GTX 560 ti

getting 20 frames in citites.
30 frames looking into cities.
60-80 while running around.

Got everything on low.

I'll be running around and I'll hear a random zombie scream. I do a 360 and wait for a zombie. Nothing happens. I continue with my run.