It is well know combat loggin which suprises me isn't fixed until now while it kinda destroy the 'fun' fighting another teams/ppls when they do that

First idea very simple to add quickly in next patch:

If there were shoot's around your character within 10-30 meters or you got shoot and bleeding you can't alt + F4 or ESC > EXIT for 5 minutes because if you do that your character will stay on the server. Why doing it 5 min or more? Because then you got time to chase ppls you didn't hit and wanna chase them.

Idea to be updated for more professional in future when DayZ team got more time:

[b]Non-Character Log-off Timer[/b]

Also known as Zombie/NPC Flag, this flag becomes active when you activate any offensive module against Zombie, or when zombie attacks you.
This flag lasts for 2,5 minutes, and when active, your character will stay on server after logging off for the duration of the timer, before disappearing safely.

[b]Character Log-Off Timer[/b]

Also known as PVP Flag is similar to the Zombie/NPC flag, this flag is activated when you use an offensive module weapon, axe, fists etc. on another player or another player uses such an effect on you. This flag lasts for 10 minutes, and as with the NPC flag, your character will remain on server after logging off for the duration of the timer. If the character is aggressed by another player while this timer is active, the timer will reset, potentially keeping the character on server indefinitely.

SAFE LOGOFF:

If you are not doing anything dangerous, you can opt to "Log Off Safely". This will give you a big on-screen timer showing you how long until you log out. When the timer runs out, your character is immediately removed from server and you are informed that you successfully logged out.

The safe log off should be accessed through the options menu, The Safe Log Off timer lasts for 30 seconds.

You cannot be safely logging off while:

    You have active item in your hand
    You are bleeding
    You have aggression from players or NPCs/Zombies
    You are issuing movement commands
    You are launching or using items

Thanks, please vote and comment what you think of this. !