Unit Tiers

[Emperor Arcturus Mengsk]

Is there some kind of logic behind them or are they there for aesthetic reasons?

I mean all that matters is unit stats, mass, and weapon quality as far as I know.

Example, the Roman medium infantry unit "Exploratores", is listed as a tier 2 unit. But there is no tier 1 version of it, and it's upgraded version "Praeventatores" is still tier 2.

Same with Germanic Spearmen and their upgrade Germanic Spear Masters, they are both tier 2.

What's the point?

[kambiz]

Another attempt to make the game look more arcady thus more appealing to casual gamers !

[Aeratus]

I think they're roughly intended to show how far in the technology tree the units are.

[The Mongol]

The point is to show you at a quick glance, how effective that unit is in general. Problem is, some of the tier choices for certain units are questionable. Sarmatian Warband being Tier 1 (beating out most Roman Tier 2 infantry IIRC), some Tier 3 units that just aren't good whatsoever. It's a nice idea, but it just needs some tweaking.