Kafka_BC,
the guns_USN material is a mixture of re-textured and editted SH4/5 meshes plus some own creations; the torpedo launchers are made up from a re-worked SH5 model, converted by Rowi58. Make use of them, that's what are for.
Just keep on trying. The more you do the more your skills increase (sadly, ambitions, too
)
the Frog