Started a new Arma Thread.. Posting here instead.
Making this thread as an outlet for people who aren't dazzled by blood covering your eyes when you are shot in the foot, ie COD-Flamers need not apply..
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ArmA2 is Bohemia Interactive's Combat Simulator. You can look at it as the rFactor to Call of duty's "GRID".
The Graphics are exceptional but you need exceptional hardware to use them.
The map is 256 square Kilometers with no loading. That is 9 miles by 9 miles for anyone not willing to do math.
If playing a full CT "Capture the Island" your looking at a minimum of 4 hours. You
may also be looking at a 64 man server. 32vs32 Russian vs American with each human player being able to "by default - no mod" control 12 (twelve) ai soildiers. With mods more then 20 are possible per human.
Arma Modding Website
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There is an array of weapons to choose from with realistic ballistic calculation and penetration. My friend even keeps a Range guide on his desk for sniping purposes.
Vehicles are insane. Each vehicle has several positions for either humans or your AI. Light armored vehicles and Heavy Tanks as your bases are upgraded. The aircraft can't really be counted as "simulation" level of difficulty but, they are not easy to use. They include Helicopters and both VTOL jets along with standard jets, a C130 and the A10.
You can get this game
off steam $50 or
find it online for ~$25usd.