Warhammer 20K?

>but humans would end with the short end of the stick.
If your analogy worked even a little, there would be no long end of the stick at all. Everybody is fucked in case of a war. That was the main point of the Cold War and the reason why it existed in the first place.

>Humans and Eldar had basically the same tech level minus
We barely know anything about the tech the Eldar empire had.

Tyranid outrunners had already reached the galaxy, but the concentrated power of the forces that be at that time (humans and eldar) meant that every single Tyranid hivefleet ended up destroyed. Presumably destroyed in space, because there are many deathworlds that contain Tyranid lifeforms that managed to stave off extinction by evolving in some non-hive-mind reliant form.

Which makes sense. When you have weapons like mankind did in the DAoT, you don't need to worry about Tyranids invading a planet. You just crush the entire hive fleet and all the spaceborne synapse creatures by throwing them in an artificial black hole. Any Tyranids that manage to get out of their coccoons on the surface will either become target practice for the Iron Men, or they (d)evolve into a wild animal after tenthousands of generations.

Aren't Nids only dangerous once they manage to land on a planet?

Unless you go full Marine and turbo retard by crashing your Battle Barge into the Nids. You can just kite the fuckers to death since they suck at space combat.

That is blatantly wrong. A
The Elsar empire was the undisputed master of the galaxy. Humanity was in no way their equal on any level, they werent even a competitor to the eldar. They were less than what the tay are to the imperium. Insignificant.

Wait, what the fuck are you talking about? Im pretty up to date on 40k lore and Ive never heard of the guys.

No they didn't, human tech was amazing, but eldar peak tech was far beyond it

>>Had any tyranid outrunners reached the milky-way?

They did long before.

The high of the federation is past the zenit of the Eldar, otherwise it would not make sense for them to have equally magic like tech.
Also otherwise it would not make sense for DAoT colonies to be that spread out. Eldar devolved into LOLSORANDUMXDKILLITFORTHELULZ. Had they be almighty, then mankind would be no.1 on the fuck up list.

>The Eldar empire was the undisputed master of the galaxy.
According to them. In 40k (the verse, not the time) that always means propaganda. We do not know enough about the capabilities of DAoT mankind to really compare them.

>Eldar were not out to exterminate anything that wasn't a threat to them
That's easy to understand when you read his post again.
>Eldar were not out to exterminate anything that wasn't a threat to them
It makes a lot of sense for DAoT colonies to be on these planets, that also almost always have webway gates on them, which makes them part of the Eldar empire, because these were small colonies that had no direct connection with Terra anymore. Eldar simply regarded them as local fauna.

>because these were small colonies that had no direct connection with Terra anymore
Sorry, mixed something up, that changed as the warp drive was invented. The rest still stands. The colonies were no threat to the Eldar.

It doesn't matter how dangerous Nids are on the ground. If you kill off the Hivefleet and kill the Synapse creatures on the planet's surface, you've just reduced the entire Tyranid army into a bunch of hungry scared animals that were evolved as weapons, not as animals, which basically mean that the bigger Tyranids will start eating the smaller Tyranids to survive, and after a few thousand years there are no more Tyranids left on the planet. Just feral animals that once used to by Tyranids, like the Krakens on Fenris or the Death Crawler or whatever they're called on Catachan.

Nids are dangerous in space too, but less so, once they make planet fall the planet is almost always doomed

The section from the codex is third person and to be taken as fact. There re sections that are excerpts from Eldar Myths or first person accounts, and those aren't to be taken literally but is.

Necrons were still asleep, by and large. Maybe the occasional Tombworld we don't know about.
As far as I know, the Eldar being the dominant species in the galaxy and nobody daring to muck about was more a thing of "Well, I know we're more busy to have planetwide orgies, but if we wanted we could easily destroy your entire race".
Maybe a bit similar to nuclear powers nowadays. You could strike at them surprisingly, but at what cost? In the worst case, they could wipe your country form the map. The Eldar would do the same, but on a galactic scale.

>Meaning humanity has access to STCs across all of their populated worlds, baneblades, land raiders and imperial knights are standard issue for PDFs
I really hope that baneblades aren't the end point of military technology and are just some stopgap measure of repurposing some industrial earth mover into a combat vehicle. I mean compare the baneblades to Traveller's imperial TL15 Grav Tank; able to reach mach 3, space capable on it's own, main gun can shoot through mountains or a punch a hole in the planet's crust, used as anti orbital defense platform.

For the Golden Age of Technology I'm expecting armies of Bolo Mk30s.

Wasn't it implied that STCs are just downgraded stuff used for colonies, so in case of a rebellion the "Imperium", or whatever came before the IoM, would still have an easy time stopping them? I mean, Imperial Knights were glorified lumberjacks back in the day.

>, Imperial Knights were glorified lumberjacks back in the day
What, where on earth did you read that

Okay, I might be wrong on that, but it's a bit of an implication IIRC, with the Knights being used to guard colonies, killing megafauna and the reaper chainsword being used as a chainsaw to carve ways.