[RajatPawar]

pawn Код:

stock choose_random_player()
{
     new random_player = random(MAX_PLAYERS);
     if(!IsPlayerConnected( random_player ) ) 
     {
           choose_random_player();
     }
     else return random_player;
}

Now use this to give weapon:

pawn Код:

GivePlayerWeapon(choose_random_player(), WEAPONID, AMMO);