Just tried it on 2Blue.
Ressources set to normal.
Borg (AI Hard) vs. Federation (Human)
I have to admit, it seems to be a "Borg map". Yesterday I tried the map with Romulans vs. Klingons and it was much easier.
Nevertheless, I could use my standard Federation tactics against the borg.
I started basic mining operations at once, built the light yard, send a venture to the moons at the wormhole, built a mining station at the dilitithium moon while building a science station (needed for SF Command) at my main base.
Then I built light defenses that could hold off the first wave of Borg attackers until I had my SF Command (strong ships for free

). I used those ships to defend my main base and my remote outpost.
Next step was to build up 2 small fleets at both outposts. Therefore I build an extra shipyard at the remote outpost.
When I had prepared everything, I had my first problem. A Borg wave destroyed many ships and I ran out of crew. I solved it by using my ressources (which I couldn't use to build ships because of the lack of crew) for defense platforms. Thus I had a good cover for my bases until I could built my second station, gaining more crew. From now, I had a station defending my remote outpost.
As the borg lost all their attacking vessels (several cubes were part of the attacking fleets), they suffered similar problems.
Because the remote moons are connected by the wormhole, I could use one single fleet to cover my station and attack his remote mining outpost. In case my outpost got attacked, I retreated through the wormhole and used my attacking fleet as a defense.
Doing so, Phase 2 of my tactics for that map worked. I conquered his 2 remote moons at the wormhole, building my own mining facilities.
Phase 3: Controlling 6 moons, I build 3 full fleets. I used 2 of them to block both "gates" around his main base. The only passages he could use to attack me.
After completing my third full fleet, I had some ships left which were defending my mining outpost and my "backup" outpost. As I knew he could not attack them anymore, I made a 4th fleet of those vessels which I held as a backup at my main base (while the other outposts were defended by platforms again, which I built dew to the low crew phase in the beginning).
Now I pulled my 3rd fleet (with Sovereigns, Defiants and so on) closer to the "gates". I then entered the area around his base with the two blockade fleets. When I knew his building placement, I used the 3rd fleet to attack the more heavily defended areas.
Concentrating the fire of a whole fleet on each single threat, I cut down all defenses very fast. The rest was easy.
I attached the log of it to my post.
Live long and prosper!