I can't install Project '85 mod help, I would like your help. I can't seem to install P85. Options

[triggerpuller101]

So I'm relatively new to Arma, even thought it was a last generation game released nearly three years ago in 2007, I have only had it for a few weeks. Playing the game was a bit of a dissapointment, because I thought it would have been a extremey reaslistic combat sim. I have heard of several mods which were recommended to those who wanted more realism in Arma. The two most recommended mods were ACE and Project '85 by Vilas. I wanted Arma to be more realistic, because the vanilla arma is downright ugly. I had no trouble installing ACE and it works fine, but when I tried to install P'85, ACE did not seem to be compatible. So here's what I did to install them: To install ACE, I went into my arma directory and made a modfolder called @ACE and inside of it another folder called 'Addons'. Then I downloaded ACE into this folder. After I did this, I right clicked on ARMA.exe and made a shortcut. I right clicked properties and put in -mod=@ACE into the path. ACE worked fine, until I did the same thing for P85. I made another folder in the ARMA directory called @P85 and in it I put a folder called Addons. The rest of what I did is pretty much standard for installing mods but P85 doesn't seem to work. I also typed in -mod=@ACE; @P85 -nosplash into the path, but when I try to play arma, the ACE menu doesn't show up and the original arma menu shows up. The Project 85 mod doesn't seem to take effect in game, and I am left with the BIS weapons, units, and vehicles. I am positive that P85 is ACE compatible. What am I doing wrong and how do I get ACE and P85 to work together? Or if you can't, how do you get just P85 to work?