Okay...

They way you handle the hanger scene is this:

Cut out the line "I want you to take her. I mean it...Take her!"

The rest plays well. In the cockpit, when Leia asks, "Hey, are you awake?"

Han replies, "Yeah..."

We look at the Falcon once more and he finishes, "I'm not going to see her again."

The biggest problem is the tone of the actors, if everyone knows its a suicide mission. Everyone is pretty jovial. There aren't any tears welling up. Then you lose the impact of Lando dying being a surprise.