Please explain me attack rule in Genesis 2 universe.
Attacker AZ - 15
Defender AZ - 13

First attack
The following fleets fought against each other on 2017-12-17 13:56:12 :

ROUND - 1 -

Attacker Anthropophagous_the_Beast [03:372:01]
Weapons:120% Shield:120% Defense:120%

Defender xelag [03:383:09]
Weapons:80% Shield:80% Defense:70%

The attacking fleet fires 220 times with a firepower of 137720 + X damage points.
The defending fleet is damaged by 54000 damage points.
The defending fleet fires 1 times with a firepower of 0 + X damage points.
The attacking fleet is damaged by 0 damage points.

Second
The following fleets fought against each other on 2017-12-17 13:56:42 :

ROUND - 1 -

Attacker Anthropophagous_the_Beast [03:372:01]
Weapons:120% Shield:120% Defense:120%

Defender xelag [03:383:09]
Weapons:80% Shield:80% Defense:70%

The attacking fleet fires 220 times with a firepower of 137720 + X damage points.
The defending fleet is damaged by 54000 damage points.
The defending fleet fires 1 times with a firepower of 0 + X damage points.
The attacking fleet is damaged by 0 damage points.

Third
The following fleets fought against each other on 2017-12-17 13:57:09 :

ROUND - 1 -

Attacker Anthropophagous_the_Beast [03:372:01]
Weapons:120% Shield:120% Defense:120%

Defender xelag [03:383:09]
Weapons:80% Shield:80% Defense:70%

The attacking fleet fires 220 times with a firepower of 137720 + X damage points.
The defending fleet is damaged by 54000 damage points.
The defending fleet fires 1 times with a firepower of 0 + X damage points.
The attacking fleet is damaged by 0 damage points.

Fourth
The following fleets fought against each other on 2017-12-17 13:57:31 :

ROUND - 1 -

Attacker Anthropophagous_the_Beast [03:372:01]
Weapons:120% Shield:120% Defense:120%

Defender xelag [03:383:09]
Weapons:80% Shield:80% Defense:70%

The attacking fleet fires 220 times with a firepower of 137720 + X damage points.
The defending fleet is damaged by 54000 damage points.
The defending fleet fires 1 times with a firepower of 0 + X damage points.
The attacking fleet is damaged by 0 damage points.