The mission is pretty easy if everyone knows what they are doing.
Me on my inv/ss tank and my wife on her emp/drk defender, were able to save the reactor, just the two of us. We failed the first try with a pretty full team with another tank, another emp defender, scrapper, 2 blasters, 1 blaster left before the reactor. we failed close to the final wave.
After the failure, everyone quit the TF, except for my wife and I.
We learned that after you fail the TF you can still go back to the contact where we got the mission to save the reactor again.
For us the toughest part was getting to the reactor since both us only had SS as a travel power. Once inside we cleared everything all the way to the hall leading to the reactor where she was defeated by getting too close to a proximity bomb she didnt see. After her rezzing. We went on to the reactor. The rest went without a hitch, the reactor got to 50% once the rest of the time it stayed above 75%. Our levels were: I was lvl 28 and she was 27. I had only taunt and not provoke. Her healing powers are slotted heavily, attack powers arent slotted much. So I did all the damage, while she focused on healing the reactor , and herself. I focused on taunting things away from her, and taunting only the bosses. We always stayed close together. I think that was the biggest fault of our previous group, we couldnt get them to stay close and allowing me to taunt away from them and the healer to heal.
Hope this helps anyone in their future attempts.