From one of the archived http://www.gamesas.com/index.php?showtopic=1072579:
http://www.tesnexus.com/downloads/file.php?id=9858
http://tesnexus.com/downloads/file.php?id=13652
http://www.tesnexus.com/downloads/file.php?id=12591
http://www.tesnexus.com/downloads/file.php?id=19086
http://www.gamesas.com/bgsforums/index.php?showtopic=1052500
Broken link, searching the name on nexus gave me this:
http://www.tesnexus.com/downloads/file.php?id=28190
War/big battles stage starts late in this mod's quest line. You have to defend several different bases like 5-10 times before it moves forward:
http://www.tesnexus.com/downloads/file.php?id=6855
A single war/big battle scenerio:
http://www.tesnexus.com/downloads/file.php?id=17448
http://www.tesnexus.com/downloads/file.php?id=6977
Mods not linked to:
Daedric Wargames
Mods mentioned, but might have been abandonded before completion:
RTS-O
War mods that have come out since this topic in November of 2009:
http://www.tesnexus.com/downloads/file.php?id=32426 has one big battle, and uhhh....
Any others?