I don’t know exactly what you mean RE: the 8 week ice training plan, but typically when they say core + general strength, they’re referring to the routines outlined in TFTNA. You can find ’em quickly cause they’re nearby where all the pages turn blue in the very middle of TFTNA.
There’s Scott Killer Core first, followed by the general strength routine.
Again maybe in the context of the ice plan this means something different, but usually that’s what they’re referring to.