Is there a chart showing the upgrade paths for the units? Something like
for all of the units.
Here, I just made one for you, based on information available from the actual game files.
Click the image to see a larger version!
- This is updated up to the June 2011 patch and DLCs; however, unique units always upgrade in exactly the same way as the units they replace, so if some unique unit is missing from the chart above you can just find out what it replaces to see how it upgrades.
- Gun units and melee units are not the same – in particular, they differ in some promotions, you can check my promotion chart which uses the same icons.
- The Giant Death Robot is indeed considered an armor unit.
- Missiles, bombs and SS parts are non-upgradable (and removed from the chart for brevity).