ARMA 2 Steam + Operation Arrowhead Disc - Mods Issue

[chivs688 10]

I originally bought Operation Arrowhead on disc, and then recently got Arma 2 from Steam on sale.

As I understand, to make it into "Combined Operations", I uninstalled OA, installed A2 on Steam, and then installed OA which chose by default the folder that A2 was already installed in.

I then got a shortcut on my desktop saying ARMA 2 Combined Operations, and the game ran perfectly with it having all the missions etc. from both games.

But, when I try installing a mod and running it, I get an error message when it tries to start it up.

I tried running the CBA mod, and on startup, I get the message "Addon 'Extended_EventHandlers' requires addon 'CA_PMC'".

And when I tried installing other mods I get the message "Addon (name of the addon) requires addon 'Extended_EventHandlers'.

The game then loads up but without the mod enabled.

What am I missing/doing wrong?

Any help would be much appreciated. Thanks.

[Spartan 163 0]

Seen people talk about his alot with steam. That was your first mistake but understandable. Get familar with the search button caise you will need it with your steam install. Do a search as this has happened before. I think if I remember corectly you need to add something to command line or a file in you ARMA directory to get it working. Good news is your not the first to have this issue so you should be able to get answers fast.

[chivs688 10]

Yeah, I only bought it off steam because it was on sale for £3, otherwise would have bought it on disc like OA.

I believe you're referring to this thread: http://forums.bistudio.com/showthread.php?t=101214

in which case, no luck. The command file works and loads up the game, but the mods just don't show up at all in the Expansions menu, so I can't even attempt to load them.

[Smurf 12]

Use a launcher, it makes your life way easier, just set it up corretly once and you are ready to go.

I recommend SpiritedMachine one: http://www.spiritedmachine.com/software_gaming.html