Considering in previous Civ games you could upgrade them to Tanks or Helicopters, it just seems ridiculous you can still build them (and not be able to upgrade them) even when you can make GDRs.
1.0.0.20
Save: http://forums.civfanatics.com/attachment.php?attachmentid=267537&d=1286497204 (that's slightly before GDR, but you get my point)
Mods: GP, City States, 24h
1.0.0.20
Save: http://forums.civfanatics.com/attachment.php?attachmentid=267537&d=1286497204 (that's slightly before GDR, but you get my point)
Mods: GP, City States, 24h
