I agree with Ryat. But I might add a couple of things.

Yes for sure use the ogrovs to kill the SB.

But ... maneuver your fleet to an edge of the grav well to lure the SB away from the hangars. Have your bombers / fighters on hold position over your fleet (you can usually safely navigate them). Put the ogrovs behind the fleet with your flak and lrms. If the Orkulus doesn't come to you then blast at edge of range with ogrovs and your lrm and keep fighters in hold position. If he bites and tries to scare you off then let your bombers losoe when out of range of the traps. Kill any builder that comes remotely close to your fleet. There must have been some opening in the grav well to maneuver to. And if you are at the edge you could jump if his fleet shows.

Btw how buffed was his SB? 20 ogrovs with some moderate fleet support will absolutely rape anything other than a maxed Orkulus with no repair platforms. And even then it is baked eventually. I assume what was also hurting you was his actual bombers in the well hitting the Ogrovs. That is why you put them behind or with your hold position fighters and your flak.

Now if you had been Advent then it gets worse much worse. If you were Vasari then you use 1-2 Eggs with armor debuff + almight kanrak spam and a subverter or two to shut down shield mitigation. But Advent you are stuck with bombers and then should probably jump to the next well or really fleet up.

Understood. To be honest while the traps protect the SB from your strikecraft, if he stays put (as you said he did) then he he doomed to ogrov focus fire. Period.

Even if the SB is upgraded and assuming you have armor upgrades on your ogrovs, and even if he has multiple repair platforms which you may have to take some out first; 20+ ogrovs will shred an undefended (even max) orkulus let alone one being also hit by some LRF. Maybe some hoshikos with the ogrovs could be some insurance. Yes you will lose some ogrovs but then again your opponent is losing a chokepoint. Btw you could also use an Akkan with targeting uplink to let your LRF shoot from further away (not sure if it helps ogrovs I would have to check). I know then the LRF can shoot the Orkulus outside his range if you have targeting uplink.

To be brutally honest as TEC I would love to see a grav well with a fully tricked out Orkulus + multiple hangars and think about all those resources that could have gone to fleet. You can either go around or torpedo it out of the sky.

Again as TEC I think you have the best advantage for the described scenario but only if you focus fire on the Orkulus. The ogrovs do the most structural damage by a landslide. As a Vasari you would go right up into his face and depending on how many eggs and kanraks and subverters you have it could take some time + losses. But as an Advent ... well then you should just go around the planet for now.

As Always a balanced fleet is the key with cracking uber defensive strongholds:

Ogrovs are great but they need the proper support. You need a cheap frigate with relatively high armor and shield/hit points to fly ahead of the Ogrovs and box in the SB. I would recommend the Flak Frigate, it is great for flying right into the fray benefiting from a high damage taken/cost ratio and omnidirectional targeting. 40 or so of these is a relatively cheap investment when you can field a fleet of 20 Ogrovs and will do wonders for the survivability of the rest of your Fleet.

Alternately, you could field a 60/40 mix of Flak and LF. Only do this if you have upgraded your LF with Sabotage Reactor. If you have, they can target the Hangars and disable Phasic Trap. After that, deploy your bombers and let the killing begin.

Next you need Hoshi's to keep everything alive. Depending on fleet size I like anywhere between 15-30 Hoshi's which will do a good job keeping your fleet alive especially against SB which specialize more on crowd control and damaging multiple targets at once rather than doing heavy damage to a single target.

After this, the rest of your build is fine. LRM & Ogrovs can focus fire and shred the Orky. If you have caps to fight against it, might I recommend a Dunov; Magnetize is one of the few abilities that can disrupt Star base abilities so the Dunov can prevent the Orky from using the Uber Shield or Healing itself. EMP is also great for shredding Antimatter on Hangars which regen AM at an abysmal rate.

If you have upgraded your missiles & armor with the fleet ideas outlined above, you should be enjoying Orkulus soup in no time.

I agree that the Hoshikos + some flak are very useful.

As gamerlamb mentioned the flak soak damage well relative to their cost. But ... if the player is driving their Orkulus the whole time (which seems likely) then he wil target the ogrovs regardless and the extra dps from the flak is well less than some at range LRF (especially with targeting uplink). On the other hand if he had strikecraft also then the flak are essential to keep the pgrovs up long enough.

Don't mistake what I was saying about a  full squad of 20 Ogrovs vs a maxed Orkulus. Being driven by the opponent is going to cost you fleet (i.e. the Ogrovs) but focus fire should still hammer it especially if you use hoshikos and/or flak. Especially since you didn't mention repair platforms. To be honest 4 hangars + 4 repair platforms with the Orkulus will be much worse than 8 hangars and no repair platforms. Btw did he have the nano weapon jammer which slows down your rate of fire?

But beyond that (with the exception of a tiny grav well) I still don't see how you can't plink him at range to make him exit some of his phasic trap shadow. The ogrovs have reasonable range. Yes the Orkulus can hit them but most his dps is out the window until he comes on near them. None of your ogrov dps is mitigated by range. Zero. Then you step back to the edge and this should be outside the phasic traps if you orchestrate it right. Then the hold position bombers would take over some of the job. And you can use your LRF to hammer the builder drones. The orkulus cannot be in two places at once. If he doesn't chase then risne and repeat. Eventually he dies esepcially with no fleet or strikecraft intervention. SOunds like your opponent sent out no strikecraft from the hangars to bank on phasic trap.

I guess I would have had to see a replay to understand better the citrcumstances ... sorry if I can't be of more help. Liek I said last resort is you bypass and make him pay for the crazy number of resources he spent on that well.

Hmm this might be a good point to try to get a clarification from the devs since though Ryat has confirmed a cap, it isn't clear it is working as intended, right?