Colonials/Cylons vs The Wraith

[User1652]

So let's say in a AU where the Cylons had not nuked the 12 colonies and decided to ally with one another to help each other out and not destroy them selves and get along fine.
What would happen if in another universe the Wraith captured Rodneys reality drive and within several months successfully installed it on 10 wraith hive ships to go to another universe to find a new feeding ground and that happens to be the NBSG universe. The Wraith send 10 hives to go to the NBSG universe and find that it is a perfect place to go and have a feeding ground so they decide to settle a few of their ships down for a colony. Can the Colonials and the Cylons stop the Wraith?

[Mike DiCenso]

What time period is this? Before the First Cylon War or when the Second one would have occured? Regardless, both the Cylons and Humans have to actually ally first before they can put a stop to the Wraith, and the Wraith are likely to wipe out both sides with their generally superior technology.
-Mike

[Mr. Oragahn]

I'll assume a time that was a few months before the holocaust, without the Cylons preparing to bomb the crap out of humanity, but still having been "beaten" 40 years ago.
They may have a few original Basestars remaining, and they still would have produced those hybrids and human models.

Some desperate nuke spam could take some hive ships down (or are they cruisers?), but globally 10 of them may be too much to cope with.
The best tactic would require Cylon computing and coordinating FTL jumps close to the hiveships, fire nukes in the engines (and hoping mere ions don't blow them up) and try to pierce into the hangar bays.
As far as I've seen from The Plan, the Cylons have many dozens of Basestars to use, plus that huuuuuge Colony that is just resting there, but which actually is a space ship of its own with plenty of weapons, notably nukes.
The Cylons are much more nuke ready than the Colonials. Not only they don't hesitate to strap those nukes to Raiders (although that was part of a well organized plan, we don't know how fast they'd be when caught more or less by surprise), as they use launch ramps for both normal missiles, cluster kiloton nukes and mono-nukes.
Colonial ships can obviously mount nukes on Vipers and Raptors, but again, the attack by the Wraith would probably be too fast for them to act fast enough and prevent severe casualties. Obviously the surviving part of the Alliance fleet will get messages that their normal weapons can't do anything.

If I'm correct, there's about 120 Battlestars, plus their own escorts. Many are of the Valkyrie size, a smaller number of Galactica types, and a few Mercury-class, perhaps even just one, Pegasus.
Still, it won't matter. Without shields, they'll do down rather rapidly, against 11 km long ships which can target multiple ships at once.
I mean, imagine that the longest Battlestars are only beyond 1 km long.
On full power, a few shots should quickly blast any Battlestar out of the sky.

Raiders and Raptors will be engaged by hundreds of Darts and it will be a carnage.

The Wraith will also shoot their viral AI in packets. It will take a few months for the AI to rewrite itself in any possible communication systems linked to computerized networks the Wraith could reach.
Hiveships also have the range advantage, capable of striking with rapid fire, from a distance so vast that in Allies we couldn't even see the hiveships firing through the bridge window of Daedalus.

The only good thing that can happen is for the Colonal and Cylon forces to leave -the Wraith will refuse any negotiation- and reach for the Cylon Colony. From there, they'll gather resources and prepare for an all out nuclear attack. All ships will be equipped with nukes and ready to FTL jumps close to hiveships. Raiders and Raptors will be sent before to localize the hiveships, some of which will probably be landed. They'll return and transmit the coordinates. Cylons proved that there weren't many issues to drop out of FTL close to a target when they had clear coordinates.
Eventually, if they prove to be numerous enough and relentless, they could nuke spam the Wraith ships and destroy them.

Meanwhile, before this plan of action ever gets put into motion, the Wraith will obviously not level all the worlds. They'll destroy enough so that the Colonial military infrastructure will be effectively down, but they'll use their Darts and drones to hunt down humans.
This will be a very loop sided war on the ground, a guerrilla one.
Humans will need to find a way to prevent the Wraith from building new ships, like cruisers. They'll have to use as many explosives and daring suicide attacks as they can. Unfortunately, not having the capacity to cloak will prevent them from entering landed hives and deploying nukes. Besides, the Wraith who will have recently eaten humans will be near invincible (see The Defiant One for a new definition of tank).
We've seen that some colonial forces managed to survive and run some operations on planets no too devastated by Cylons, and the Wraith are above all looking for food, so they certainly don't want to kill too many humans.
However, if they can't get what they want easily, they've been known to destroy cities, food be damned.

I think the Alliance could give the Wraith a run for their money if they flee with enough forces and rethink their plan, while human assault groups keep harassing the Wraith.
Plus with Cylon FTL, it will be possible to actually deliver Centurions and weapons (rifles, heavy rifles, mortars and rocket launchers) to resisting humans.

That said, all it will take for the Wraith to gain intel is to capture a few humans who know what's going on, and torture them or mind probe them. So you can consider that the whole guerrilla warfare the Cylons will support won't be a secret for very long. Not to say that the FTL jumps will be rather obvious on the sensors. And even worse if the Cylons or surviving Colonials make short jumps beyond the Red Line, which Wraith FTL sensors may easily catch.

Really, the Wraith AI virus will be most interesting here. We can consider that the 304s used a protection level at least on par with what is available in the top armies of this world for their current warships and infrastructures.
It's hard to gauge the Cylon computing capacity. The humandoids were just a plain cheat, capable of things never truly explained in the show, although we've seen that Sharon could deactivate a whole armada for Cylon Raiders and Bombers, and Samuel Anders could interface control the whole of Galactica after she had been mixed with Cylon tech.
Colonial computing technology wasn't really primitive either. At some point before the 1st war with the Cylons, they had very advanced virtual realities and could handle human-like AIs. It certainly does take some serious computing power and efficiency to maintain such systems running.
It's the result of the first war that had them get so weary of computers and men of metal, although this fear was starting to wane 40 years later, as evidenced by the acceptance of the CNP introduction to naval warfare.

[Trinoya]

What did nBSG do to you?

10 I think may be over kill. The wraith regularly engaged ships that sit near blackholes without too much issue and ships that tank very abnormal solar flares, and I think their FTL will give them the ability to dictate the local engagements at planets (they could, if they wanted, just zip on over to the other side of the planet as the fleets move to engage them).

[Mr. Oragahn]

What did nBSG do to you?

10 I think may be over kill. The wraith regularly engaged ships that sit near blackholes without too much issue...

304s can actually fly through the accretion disk of overly small black holes (the most powerful) as we could clearly see the trail the 304 made, just as much as hiveships can.
But then, enough nukes can take down a Wraith ship, and they have those annoying weak spots which make them very sensitive to nukes bursting inside them.

and ships that tank very abnormal solar flares,...

With the help of a ZPM so that doesn't count.

... and I think their FTL will give them the ability to dictate the local engagements at planets (they could, if they wanted, just zip on over to the other side of the planet as the fleets move to engage them).

I've never seen them do anything like that, although technically they could probably fly through planets just like a variety of ships have done in Stargate.
Still, Cylon FTL is absolute accurate, and much contrary to the Wraith, we know that they are capable of short jumps. Even Battlestars and Raptors can achieve short jumps as long as they know where they go. For example, Galactica jumped in atmosphere, let herself fall for some kilometers and then FTLed up in orbit. Raptors, in the final, jumped from inside the museum arm of the ship and reappeared some distance from the Cylon Colony to nuke it. Cylon FTL is very good, and no doubt that Raiders and Bombers will provide extremely valuable astrophysical information for jumps.
Besides, they're working alongside Colonials, which means they can receive whatever info from Colonial transponders, radars on the ground or anything else that's capable to send such information.
That's a very interesting matchup. Cylon Basestars, when prepared, can spam nukes at targets, some of them being in the megaton range: we saw such weapons in The Plan and they were all fired from the same launchers the Basestars used throughout the entire show.
It also goes without saying that the Wraith have not shown any evidence that they could rebuild their Dart numbers from internal factories for example, contrary to the largest Battlestars. The Cylons have their own Colony as well, from which they prepared their assault.
Once the hiveships will have lost their Darts, there won't be anything left to prevent some Raiders to spam nukes at the obvious openings.
Also, we've seen that a tame ramming into one of a hiveship's "nipples" completely ruined it. Heck, a mere F-302 missile also ruined hiveship's FTL, while another such missile blasted through the ridiculously weak access door of the superhive's Dart bay, which Sheppard went through to plant a nuke inside.
It's not so lopsided.

[Khas]

I, actually, have seen a ship in SG use hyperspace as a way of escaping crashing with a planet. I think it was the Prometheus, but I'm not entirely sure. They went into hyperspace on one side of the planet, and came out on the other.

[User1652]

That might have been the Odyssey or a ancient Aurora

Also I was not having the wraith attack the colonies or the Cylons all at once maybe send a few cruisers or hives at once and attack them there. It would be interesting to see Vipers vs Darts though. Also this does take place before the 12 colonies where destroyed.

[Mr. Oragahn]

What is cool with Wraith weapons is that capturing people is like a natural thing. Plus Wraith can also brutally kill, and then revive, and rekill, and rerevive, etc.
That's how they converted some old friends of Ronan into betraying their own kind, for example.
I actually wonder what would happen if they did that to a Cylon agent. Would they be able to spam the Resurrection Hub?

[Mike DiCenso]

You bring up a point here. The Wraith are not just a technological game-changer in the nBSG-verse, they're a traumatic cultural one. See, everything in the Cylon's "Plan" is based around wiping out Humanity, but that gets a huge monkey wrench tossed into it because the Wraith will go after humanoid Cylon and Human alike with equal gusto. Plus there aren't supposed to be true aliens in the nBSG-verse anyway, so now both sides have to deal with that shock, and they cannot ever be anything other than allies from that point on once they learn there are some pretty nasty things in the SG-verse waiting to make their move.
-Mike