However, captain Ferguson knows they still have a huge job to do next week's second leg tie in Bremen.
"It was a great team performance, we worked ever so hard. In the second half we played some good stuff.
"It's only half time though, they are a quality team. We expect a tough game in Germany.
"Confidence is high. Every one is playing with a smile on their faces.
"We've set standards and we need to maintain them," added Ferguson.