[Lordzy]

I don't understand why you've switched to many cases. Why not like this?

pawn Код:

public OnPlayerGiveDamage(playerid, damagedid, Float:amount, weaponid)
{
 //As you've declared it from 0-100 :
 new Float:damagingvar;
 if(DAMAGE[playerid] <= 0) damagingvar = 0.0;
 else if(DAMAGE[playerid] >= 100) damagingvar = 100.0;
 else damagingvar = DAMAGE[playerid];
 new Float:hp;
 GetPlayerHealth(damagedid, hp);
 SetPlayerHealth(damagedid, hp-damagingvar);
 return 1;
}

The rest all seems good, but however, you could make this filterscript much more better.
• It'd also effect the players who are paused.
• It only reduces health, would improve more if it's like normal damages happening.