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How do you Upgrade a Unit?

Posted: Fri Jun 07, 2013 3:17 am
by Earthmichael
How does one go about upgrading a unit? I saw some discussion that some units are supposed to be upgradeable.

So can anyone tell me which units are upgradeable and how you go about upgrading?

Re: How do you Upgrade a Unit?

Posted: Fri Jun 07, 2013 4:37 am
by azpops
First, the unit must be in a city. You can only upgrade in a city hex.

Second, select the unit. In the lower left of the screen the unit and its factors will appear. One of the selections for the unit is a question mark (?). Click on this and you will be given the options for upgrading the unit. All options require credits.