Pretty terible. Here have a

to make you feel better, but a spade is not a shovel.
Lone wolf and the pred have their places in lists.
The other units are not great. Termies are expensive. Logan is expensive. Whirlwind is plain bad. Excessive plasma guns is not a great option for
GH.
If you want to play Logan then there is one sort of list that can work.
If you want to play with Grey Hunters in rhinos then there is one canonical choice of squad set up which you should adjust for your taste.