We beat it on KDF side, not bcs of some bug, this was a team effort, coordination, months of trial and error, and ofc luck. Also bcs KDF has a special item that feds don't have, improved our chances of success.
Aceton assimilators and plasmonic leech can help of course. That's definitely not a secret, kdfs have better ships for pve.
If you tell us you did it without the multiple commander bug then it's fine, why not, but i'm not sure you could do it with jem'hadars or breens.
I've started work on a stowiki guide, for now it's under my profile so feel free to post any questions or constructive feedback you have here so I don't end up making several revisions to the main page.
Lack of private queues is hurting our efforts on fed side. We've been up against Nausicaans and Jem'hadar, Breen, Fed even Fek'ihir. Most of the time we get to wave 10 without any problem but then wave 10 comes and for one reason or another we just don't quite make it. Perosnally I prefer Romulans even with their cloak.
Updated the above link to include strategy on dealing with each level, general tips and specific tips for level 10. Specific wording is still subject to change so if anyone has constructive feedback please post here.