The following rockets which are used by the Wipeout and Neophron seem to have "MissileBase/MissileCore" parents instead of "RocketBase/RocketCore" parents:
Rocket_03_AP_F
Rocket_03_HE_F
Rocket_04_AP_F
Rocket_04_HE_F
I dont know if this is intentional or not but all other aircraft that are equipped with unguided rockets have rockets with RocketBase/Core parents.