I'll have to check these out. I liked Lions of Kandahar and DEVGRU for Arma 2 OA.
Here's the
main hub for Cold War Rearmed, and
Red Hammer, the third campaign from the original game. Cold War Rearmed has links to Resistance and Cold War Crisis, which were the two campaigns made by Bohemia (Red Hammer was made by Codemasters, and the main people behind CWR didn't want to touch it).
ArmA Rearmed is a bit of an interesting one right now. That link contains an early public build of the game, but there's a few catches. First, almost all of it is in German, and second, the third campaign, Royal Flush, is in a demo form. I have spoken to the person handling the remakes (thank you based Google Translate) and while I have a more completed build of Royal Flush, he does plan on releasing an update sometime this month or next month to have it all in English, to update more of the first campaign Sahrani Conflict, and publicly release Royal Flush in a more polished format.
Both of these remakes to me make ArmA II perhaps the best entry point to the series. It's really the only game where you can play ArmA 0, ArmA I, and all of ArmA II with the same gameplay mechanics and AI. Compound that with ACE, TPW, JSRS, and Blastcore, and you have perhaps the most intense military experience to date. ArmA III feels like it's in Alpha in comparison.
