McDermott has already steered his side to cup wins over Liverpool and Burnley this season and he is confident that his side will forget the 2-0 defeat at Blackpool and be back on giant-killing form to earn a place in the last eight for the first time in 83 years.
He said: "The FA Cup is special, it would be special if we can win and I've got every belief that we can do that.
"It's a good opportunity to go there and make the last eight for the first time in a long, long while.
"The players have done us proud over the last few weeks and we have already got the Blackpool game out of our system.
"We will go there with all guns blazing."
Source: Team Talk
Source: Team Talk