Help!!! I only have Arma 2 Operation Arrowhead and I cannot join servers or play missions!!!

[=VG= SavageCDN (Inactive Duty)]

If you own Arma 2 Operation Arrowhead, but not Arma 2, you may have problems joining servers or playing certain missions. This may be because the server or mission requires you to have Arma 2 in addition to Operation Arrowhead (this is essentially what Combined Operations is - both Arma 2 and OA combined into one).

To fix this problem you can either buy Arma 2 or download Arma 2 Free and 'combine' it with your copy of Operation Arrowhead... giving you Arma 2 Combined Operations. Sound confusing? Well it is!!

The easiest way to do this is to use Six-Updater mod manager it will download and install Arma 2 free for you. See this post for further instructions and documentation for Six-Updater.

http://forums.bistudio.com/showthread.php?129082-ARMA-2-Free-For-Combined-Ops-Lite