Hello,I downloaded "Open it" on here,the file opener,and I downloaded the challenger 2 addon,A-10,Blackhawk,ect,and I went to files>downloads>and opened open it and dragged the file to it.It converted it,so I then went to Local disk>Bohemia Interactive>Arma 2.I created a file named @mods(@ is the at symbol).I then created a file within it called addons.In that,I created another file called mods,and that is where I drug the challenger 2 converted files into it.I closed out(it saves automatically,apparently) and went to the Arma 2 shortcut(I have the steam version) on my front screen.I right clicked and went to properties,and in the videos on Armaholic,it says go to target,but my shortcut doesn't have target,instead it has URL,so at the end of the URL I put a space and put -@mods=(the file name).I just noticed that the converted folders need to go under addons and not mod folder,but othr than that,what else am I doing wrong?I also have version 1.11 something,s that an updated version?

What I do is:

Under ArmA2 folder create a FOLDER called x
Under x I create a FOLDER called @chally
Under x\@chally i create a FOLDER called addOns
Under x\@chally\addOns I put all the *.pbo and *.bisign files from the addon.

Then I add this to my ArmA2 shortcut:

-mods=x\@chally

This way I keep ALL my mods under the x folder so I can really easily save them during a reinstall or replace them as needed since they are all under x.

Thank you,I will try.

Added 7 hours 28 minutes later:

It didn't work.I did this.
Arma 2>x>@chally>addons> then i put the files in there.
Under the Arma 2 shortcut on my front screen,and under URL I added the -mods=x\@chally and closed.Launched it...nothing...

Added later:

It didn't work.I did this.
Arma 2>x>@chally>addons> then i put the files in there.
Under the Arma 2 shortcut on my front screen,and under URL I added the -mods=x\@chally and closed.Launched it...nothing...

Steam version? or not?