Both clubs have been given the permission by government to hold the two-legged tie following Fifa’s decision to set up a normalisation committee to oversee football in the country.
All activities relating to the sport are under suspension since June in the wake of a documentary by undercover journalist Anas Aremeyaw Anas which exposed several corrupt practices in the game.
"I have a lot of information about Hearts of Oak ahead of the game including how they want to use Patrick Razak," Fabin told Oyerepa FM.
"I got all these information through the kind of training regime he and his teammates have been taking this week. We’re also prepared for them.
"We are battle ready for any surprises also since there can always be a plan B because football is full of uncertainties. I'm highly confident that we will win the first and second leg to end their impressive run in Kumasi recently," he added.
The second leg will also be played at the Baba Yara Sports Stadium due to ongoing renovation work at the Accra Sports Stadium, home of Hearts of Oak.
Kotoko are yet to defeat Hearts in Kumasi during regulation time in all competitions since 2011.