Board Thread:Questions and Answers/@comment-32568021-20170807194407/@comment-26366865-20170809140917

Honestly, if 1h/week is all you can spare, there’s not much hope for you to complete this event. Even if you have a capable fleet and follow the front liners’ information perfectly, you’re still looking at many hours of playtime. Between the endless nodes and the numerous extra battle phases we have in events, it’s not uncommon for a sortie to take upwards of 10 minutes from start to finish in the later maps. Also considering the fact that multi-phase maps are pretty much guaranteed these days, I doubt you’ll be able to clear more than a handful of maps in such a short timeframe.

There have been plenty of people who successfully yolo’d the entire event in a single day, though. If you can spare an entire afternoon to it, you'll probably be able to make some good progress, resources permitting.