Thanks to the great input from the community, we've greatly expanded the Research Tree to allow you to upgrade your infantry units as you play.
Here's how it works:
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There are a few additional pages to the Guide (available in the upper left of the Main Menu) to show you how to access it. Just click the rank insignia in-game to bring it up, hover over the icons to see descriptions, click to unlock/purchase the upgrade. That's it!
You may also notice at the top of the screen, there are a couple more research tree categories that are currently locked. We have tank tech, artillery tech, and defensive tech in the works now! More to come on that soon.
As always, let us know what you think of the update! If you have ideas to expand the research tree further, we want to hear them!