A few questions.

[Blomkvist]

How do stack and stack anti-air work together? Are both used or just the highest?

Does cancel stack bonus cancel stack anti-air?

Does cancel enemy hero cancel all bonuses from the hero or just command?

How are critical strikes resolved when both attacker and defender succeed? Does a unit attempt critical strikes on every unit it faces?

[KGB]

Blomkvist,

How do stack and stack anti-air work together? Are both used or just the highest?

Both.

Does cancel stack bonus cancel stack anti-air?

Just stack. Anti-air is something completely separate and non-cancelable.

Does cancel enemy hero cancel all bonuses from the hero or just command?

Just the command bonus.

How are critical strikes resolved when both attacker and defender succeed?

It's considered to be a failure for both so neither unit is killed.

Does a unit attempt critical strikes on every unit it faces?

No, just the first one it faces.

KGB

[Blomkvist]

Thanks. One more question.

Do heroes with flying units count as flying units so that antiair bonus works against them?

[KGB]

I don't know. SnotlinG/Piranha will have to answer that one.

My guess would be no.

KGB

[piranha]

The hero does not count as flying ever in th beta3.

[Blomkvist]

A couple more questions.

What happens if your upkeep exceeds your income and you run out of gold?

What are the levels of experience points required for heroes to gain levels?

[SnotlinG]

What happens if your upkeep exceeds your income and you run out of gold?

Production is stopped in the cities that would produce for that turn.

What are the levels of experience points required for heroes to gain levels?

1000,2000,3000,4500,6000,7500,9500,11500,13500,16000,18500,21000,24000,27000,30000,34000,38000,42000,47000,52000,57000,63000,69000,75000,82000,1000000