Previewing the Burton game, the 31-year-old told iFollow Iron: “It will be a tough game, as they are on the back of two good results.
"They will be full of confidence and I am sure they won’t want a slow end to the season, so we know it is going to be tough.
“We have played them twice already this season (in the FA Cup first round and league) and know the problems that they can cause.”
He added: “We need to make sure we do our own jobs, look after each other and take the game to them.
“The cup game was scrappy at times, so we have shown that we can do both sides of it.”
Last weekend, McArdle made a return to the side, helping the Iron to a draw away at Shrewsbury.
He believed his side defended well for most parts of the encounter, which saw him play alongside Byron Webster.
McArdle said: “If you win, lose or draw a game, it is always important that you look at both sides of it. We showed how organised we were, making sure we had a platform to go from, which gives us a chance.
“It is always disappointing to come out of the team, but that is why we have a squad.
“It is important we have competition for places, it is vital that they can do everything during the week to get back into the team and that the ones who come into the team take their opportunity.”
McArdle felt he performed well, but it was frustrating to concede a late equaliser.
“It was disappointing to concede as late as we did,” said McArdle.
“Prior to that, we defended reasonably well because a lot of balls came into the box that we generally cleared.
“It is important to look at the good things and how solid we can be when everyone is organised and talking.”
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