I'm trying to make a good combattag skript and I have 3 ways, what do you think? or can you help me improve the script?

1.

Code (Skript):

1. on damage of player:
2.     set {combattag.%attacker%} to true
3.     send "&cNow you have combattag."
4.     wait 15 seconds
5.     set {combattag.%attacker%} to true
6.     send "&aNow you have no combattag."
7.    
8. on command:
9.     {combattag.%player%} is true
10.     cancel event
11.     send "&cYou have combattag."
12.    
13. on quit:
14.     {combattag.%player%} is true
15.     kill player
16.     set {combattag.%player} to false
17.    
18. on join:
19.     set {combattag.%player%} to false

2.

Code (Skript):

1. on damage of player:
2.     set {_time} to difference between {combattag.%player%} and now
3.    
4. on command:
5.     if {_time} is less than 15 seconds:
6.         send "&cYou have combattag."
7.         cancel event
8.         stop
9.     set {combattag.%player%} to now
10.    
11. on quit:
12.     if {_time} is less than 15 seconds:
13.         kill player
14.         stop
15.     set {combattag.%player%} to now
16.    
17. on join:
18.     delete {_time}

3.

Code (Skript):

1. on damage of player:
2.     if {combattag::%player%} is not set:
3.         set {combattag::%player%} to now
4.         stop
5.     set {_time} to difference between {combattag::%player%} and now
6.    
7. on command:
8.     if {_time} is less than 15 seconds:
9.         cancel event
10.         set {_combattag} to 15 seconds
11.         subtract {_time} from {_combattag}
12.         send "&cYou have %{_combattag}% of combattag." to player
13.     else:
14.         set {combattag.%player%} to now
15.        
16. on quit:
17.     if {_time} is less than 15 seconds:
18.         kill player
19.         set {_combattag} to 15 seconds
20.         subtract {_time} from {_combattag}
21.     else:
22.         set {combattag.%player%} to now
23.        
24. on join:
25.     delete {_time}

 

in what section do I publish it and how do I put it in solved?