Cn and CP sounds

[Caso.Sub]

Hello Im putting sound in a good bunch of my locos.

I need help with some of correct types.

Its the horn thats missing me up. I have the following locos:

CN sd40-2 IC repaint, cn  sd40, cn sd40-2 WC markings, cn sd40-2 GTW markings, GP40-2L

CP AC4400CW, CP sd40, CP sd40-2, c424, rs18

Does CP have a lesile 3 horn?

Does CN have a nathan 5 horn ?

Thanks

CASO