You are not supposed to solo the command ship. It us a group mission fir 5 players.
I did it with 3 once. 2 would be pushing it, alone is impossible
I rarely see 5 in the Borg Incursions. It's usually 2 or 3 and I can take out the Command ship with at least one good player assisting. Takes concentration and focus to succeed, but it's attainable. The few times that I haven't succeeded, it was due to a group of greenhorns all going their own direction.
Just curious, what would you give me if I succeeded solo??? I haven't tried since acquiring the DOFFs. Perhaps they are the edge I need to succeed. Don't underestimate the power of the Force, ... I mean the Excelsior. :-)