var testarray[2] = {1,39};

typedef struct
{
   [...]
   var harpoint_counter;   // Max number of weapons for the turret
   var* vertex_numbers[0]; // Array for the vertex of the model
   [...]
} TURRET;

TURRET* Test;

init_structs_startup()
{
   Test = sys_malloc(sizeof(TURRET));
   Test.hardpoint_counter = 2;
   Test.vertex_numbers = testarray;
   [...]
}

[...]
var i=0;
for(i=0;i<Test.hardpoint_counter;i++)
{
    my.skill[4+i] = Test.vertex_numbers[i];
}
and use vec_for_vertex and ent_create to attach the guns.

Test->vertex_numbers = (char*)sys_malloc(Test.hardpoint_counter*sizeof(char));

typedef struct
{
   [...]
   var harpoint_counter;   // Max number of weapons for the turret
   var* vertex_numbers; // Array for the vertex of the model
   [...]
   WEAPON* t_guns;
   [...]
} TURRET;

for(i=0;i< Basisturret.harpoint_counter;i++)
{
	(Basisturret.t_guns)[i] = setup_template_weapon(Basiswaffe); 
}

"setup_template_weapon" creates a new WEAPON struct and uses memcpy to copy the stats of Basiswaffe and finally returns the pointer of the new created struct.

Basisturret.t_guns = (WEAPON*)sys_malloc(Basisturret.t_gun_amount*sizeof(WEAPON));