OFP was and it's still a great game, I was into modding with it (mainly scripting and mission making, plus a map and some static objects packs for it). It's modding community made it survive and even grow for so much years after it's release, but.... sad to say the same community turn it into a "dead" game pretty soon: the more the mods/addons were released and more was difficult to play it: unreachable addons, cheaters everywhere, unbalanced units and missions, unplayable addons due to poor optimization/design which often led to lag both in SP and MP.....
And the same is going to happen with Armed Assault: there are hundreds of people (modders and wannabe modders) crying for the modding tools instead of playing it. Actually it's kinda hard to have some joy in a public server....
I fully understand BFC policy about their games.