This page contains Act Of War: Urban Defense Hints for iPhone - iPad called "Upgrading units strategy" and has been posted or updated on Nov 26, 2012 by ice-climber.
- Developer: Atari
- Publisher: Atari
- Genre: Adventure
- Release: Feb 25, 2011
- ESRB: Not Set
Upgrading units strategy
Keep in mind that you'll be able to upgrade all of your structures two times. In some cases it is better to upgrade existing units than build entirely brand new ones.
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