[Maind]

Hi, with help of @peace-maker and @Pelipoika i've got the solution for that

PHP Code:

#pragma semicolon 1
#include <sourcemod>
#include <dhooks>
 

// CItem_Healthshot::CompleteUse(CCSPlayer *) (probably returns void)
Handle hHealthshotCompleteUse;
int offsetHealthshotCompleteUse;
 
public OnPluginStart()
{
    Handle temp = LoadGameConfigFile("healthshot.games");
    if(temp == INVALID_HANDLE)
        SetFailState("Missing healthshot.games file in gamedata folder.");
    offsetHealthshotCompleteUse = GameConfGetOffset(temp, "CompleteUse");
    if(offsetHealthshotCompleteUse == -1)
        SetFailState("Failed to get offset from healthshot.games file.");
    CloseHandle(temp);
      
    hHealthshotCompleteUse = DHookCreate(offsetHealthshotCompleteUse, HookType_Entity, ReturnType_Void, ThisPointer_CBaseEntity, HealthshotCompleteUse);
    DHookAddParam(hHealthshotCompleteUse, HookParamType_CBaseEntity);
}
 
public OnEntityCreated(int entity, const char[] classname)
{
    if (StrEqual(classname, "weapon_healthshot"))
    {
        DHookEntity(hHealthshotCompleteUse, true, entity);
    }  
}
 
public MRESReturn HealthshotCompleteUse(pThis, Handle hParams)
{
    int client = DHookGetParam(hParams, 1);
    
    //Here you can do some stuff with client who used healthshot :)
    
    return MRES_Ignored;
} 


and current offsets for this

"Games"
{
	"csgo"
	{
		"Offsets"
		{
			"CompleteUse"
			{
				"windows"	"453"
				"linux"		"459"
			}
		}
	}
}