I remember downloading the ADF pack (no idea if it was yours or not back in the day, and did it come with a modified Steyr AUG?), as well as about 312986264 addons / campaigns / missions for OFP and even made my own until I got hooked on Xbox/PS2. I loved the really in depth addons like the mines pack and the Vietnam pack (which I went to the trouble of setting up labouriously to play twice).
Just played ArmA and a lot of it feels reassuringly familiar, but the helicopters are a bastard to fly, and even after downloading nearly a gig of patches there are still bugs here and there. Its not bad in itself, and having played it I do see where you're coming from about the texture modelling DivHunter, though at least the environment and effects are up to par with the unit and weapon detail.