[MP2]

pawn Код:

public OnPlayerStateChange(playerid, newstate, oldstate)
{
    if(newstate == 3) // Passenger
    {
        // Get weapon data in slot 4 (SMGs)
        new weapon, ammo;
        GetPlayerWeaponData(playerid, 4, weapon, ammo);
        SetPlayerArmedWeapon(playerid, weapon);
    }
    // other code
    return 1;
}

Not tested. Should work. The 'weapon' might be 0, which means they don't have an SMG. In which case, their armed weapon will be set to 0 (fist).