Thanks for helping out!
No, I checked and do not have 2 expansion dirs. Here are the output per your request. I have also listed the whole directory structure:
$ ls -la
drwxr-xr-x 14 urutu urutu 4096 Apr 19 11:43 .
drwxr-xr-x 5 root root 4096 Apr 19 10:24 ..
drwx-w---- 2 urutu urutu 12288 Apr 17 12:31 addons
-rw-rw-r-- 1 urutu urutu 322 Apr 17 12:35 arma2.cfg
-rw------- 1 urutu urutu 13 Apr 19 11:43 arma2oa.cfg
-rwxrwxr-x 1 urutu urutu 2800 Jun 29 2010 arma2oaserver
drwxrwxrwx 2 urutu urutu 4096 Apr 19 11:42 battleye
drwx-w---- 2 urutu urutu 12288 Apr 17 12:31 common
drwxrwxrwx 2 urutu urutu 4096 Apr 16 09:02 dta
drwx-w---- 6 urutu urutu 4096 Apr 19 10:54 expansion
-rwxrwxr-x 1 urutu urutu 395 Apr 19 10:21 install
drwxrwxrwx 2 urutu urutu 4096 Apr 17 12:31 keys
drwxrwxrwx 2 urutu urutu 4096 Apr 19 11:00 missions
drwxrwxrwx 2 urutu urutu 4096 Apr 19 10:55 mpmissions
drwx--x--x 2 urutu urutu 4096 Apr 19 11:43 player
-rwxrwxrwx 1 urutu urutu 15676336 Feb 25 04:14 server
-rw-rw-r-- 1 urutu urutu 4251 Apr 16 14:46 server.cfg
-rwxrwxr-x 1 urutu urutu 13212 Apr 19 10:54 tolower
-rw-rw-r-- 1 urutu urutu 3137 Sep 13 2007 tolower.c
$ find -type d -print
.
./addons
./battleye
./common
./dta
./expansion
./expansion/battleye
./expansion/addons
./expansion/dta
./expansion/keys
./keys
./missions
./mpmissions
./player
If you have any other suggestion or questions, please let me know.
Thank you!