Talk:World 4/@comment-27082841-20151209115652/@comment-24210233-20151209120523

That's the formation the Enemy will be using. If your friend doesn't believe it, tell him to visit the Fall 2015 Event page.

There, you can see the list of Nodes and Enemy Patterns, as well as the Formations. Since in maps such as E-1/3/4 you use Combined Fleet, it's impossible to reccomend formations such as "Diamond" or "Line Ahead", since they don't exist in Combined Fleets. Thus, they  have to be the Enemy formation.