Operation Stronghold Vanished Without Giving Reward

I was all ready to complete Stronghold. I had unlocked all the prior rewards and was one ingame day away from getting the last one. When I joined my game today, after the day change happened, I opened the Operations panel expecting to recieve my hard earned reward from Stronghold, but instead I saw that the Stronghold operation was gone, only Operation Firestorm remained. Worst part is, I didn't get that final reward, which was rumored to include an L2 flame tank and some other goodies!