A Quick Guide to Combat Damage

[Neokarasu]

No, that's not it. Read it again, and think before you say it's wrong.

It's number of attackers*total attack- Defense = how much damage you will do. But remember that this doesn't include range.

So by what you said,
Damage = (#Attacker * Total Attack) - Defense
and by ex.2,
Casualty = Damage / Life

It's consistent so far by ex.2 you provided
(10 * 10) - 50 = 50 damage
50 / 100 = 0.5 (i.e. takes 2 rounds to kill 1)

Ex. 2- unit A is being attacked by 10 unit B's. Now remember that attacking units attack as a group. So together unit B deals 100 damage to unit A. Crushing unit A's defense, and dealing 50 damage to unit A's life.
Next round- The 10 Unit B's attack again this round. They deal 100 damage again. Crushing the defense, and hitting unit A's life again for 50 points. This kills unit A, and the 10 unit B's win.

Idea here- This shows what happens when the attack is greater then the defense. Also shows that high defense is CRITICAL, as that regenerates every round, unlike Life points.

Ex. 3- There are 10 unit A's that are being attacked by 100 unit B's. The combined attack for unit B is 1,000. Unit B attacks unit A. Since killing one unit A would have to have an attack of 150 or up, the unit B's kills 6 unit A's, and deals 100 damage to another(leaving it with 50 health). In the next round, the unit B's finish off the remaining unit A's.

Idea here- Shows how groups attack and defend. Very orderly, and easy to predict.

However in ex.3, your calculation for casualty is:
Casualty = (#Attacker * Total Attack) / (Life + Defense)
(100 * 10) / (100 + 50) = 6.67

But by your ex.2,
Casualty = [(#Attacker * Total Attack) - Defense] / Life

Which is not the same as the formula derived from ex.3.
So until you have consistency within your own statements, it's not going to prove anything.