> > My theory is that they “bring” space to them. For example: they take one point of space and they bring the location to them without disturbing it’s already set position in the universe… Baisacally they fold the opposite side of the paper so that it’s nearly touching.
>
> Sounds a bit like the String Theory - or even the M-Theory for me. Would be cool, if we have a nice gfx effect for this kind of “jump”.
>
> Well, the paper thing could also be working like a “normal” wormwhole.
>
> (…)
Well, I thought a lot over the way “how the precursors can bring the room to them” - I mean not with a wormhole or portal. This only means make a tunnel through the hyperroom (or subroom - that would be transwarp or slipspace if I am correct).
But now I found a way. A lot of theory in it … and it is not easy - but I will try to explain it.
Well 1st in the string and m-theory is said: there are more than 3 dimensions of room(/time) - and (for example) the big bang was created because some strings or membranes moving through some dimensional areas. So the universe expanded because some other dimensions “pull” it.
Also we have all these quantum stuff in the other dimensions left.
I mean the thing with: there are endless different realitys in our universe - quantum based - and all are real - just: not “here” at the moment.
(If you modify a quantum particle and it has a “twin particle” the effect will be transfered from one particle to the other - immediately. Faster than light - may be useful for communication systems over LONG distances // this can be, because quantum particles don’t need only one place to exist. A particle can have two places where it is at the same time).
Well … and:
It is not only the question if you go left now or right - for each time unit exist endless different realitys.
So now the precursors need to find a way to “mix” these quantum realitys in a defined room and a defined time. So they have to control a lot of the dimensions (not only room (our 3 dimensions) + time // no: the alterned quantum realitys, too.)
In the end they will bring target-room and target-time to them, by using a altered quantum-reality in which they are there at the moment in the right time (because there are endless quantum-realitys = everything exists).
In the end the reality is doing what the precursors want to do. And that would be useful to travel, too.
Example :p:
2 precursors want to travel from ‘reach’ to ‘earth’. They don’t fly, don’t use hyperroom or a wormhole - no.
It would be a bit like this:
They jump in their “ship”. Then their “engines” start “to search”(/or generate) a quantum-reality in the right time (so the current time) where both precursor guys are in their current ship and near ‘earth’ - not near ‘reach’.
Then they do the quantum-reality-jump [I call it hyperquantum-jump].
Because there are endless quantum levels, but only one in which we “live active” the precursors disappear near ‘reach’ and appear near ‘earth’.
Also they could changed their ships color from black to blue and add some better seats with this technique. =p
A cool way to travel. Incluning the possibilty to travel back in time.
The thing is: they need to create a “interquantum”-search-field/or manipulation-field AND a “hyperquantum-jump”.
The first thing would use … well I dunno how much tons of pure energy 
> because they need to create a small quantum-singularity (a supermassive black hole might be enaugh - but noone knows :p).
The “hyperquantum-jump” would eat even more energy - because their ship would be desubatomized w/o energy that stabilizes all dimensions. And they need the energy to “Push” the ship through the reality-rift, too. Oh and don’t forget the big-hyperquantum-singularity for the ship.
~
Well, they could still use this technic - but they need a whole galaxy as power station to refill their energy tanks :p.
I mean this literary - may be the precursors have something like that somewhere.
But I strongly think: they need other ways to travel aswell.
May be … in realy special cases or emergencys they will use this hyerquantum-jump (like a normal spaceship needs to use hyperroom; or even less).
~
The thing is: that time don’t plays a big role if you use this hyperquantum-jump technology. Also you could change things in a reality.
>
So for a storyline in Halo:
I would say: add some obstacle: so changing to many things or driving back in time would use more energy for the hyperquantum-jump. So MC has to avoid that precursors gain to much energy somehow - or they make him disappear 
.
But the thing that they might drive back in time could also mean: if precursors arrive: they want to do something important > to change the (“active”) timeline. So MC needs to dubble his efforts - so they drive back in time for nothing if you are finished with them :p.
Nice energy waste for precursors, too. XD
(I personaly think that timedrives won’t fit in Halo.)
~
An other problem with the hyperquantum-jump is the ECS (“End of ChronoSphere”). If time has a start (and may be an end) you could quasi jump out of our timesphere. That’s a problem because noone knows what’s up with physics there.
But it is may be the place where the precursors hide atm =p.
They might use an outpost there, that generates the same dimensions as we have in our reality.
Why?
Because we could play as MC and destroy their outpost. And before it blows and fades away in the endchronosphere > MC needs to hijack a precursor fighter and get back into our reality/universe/world with a hyperquantum-jump.
Whew* - that is the most complexe idea I ever wrote down here. And I dunno how to add it good in a Halo storyline.
Well: the hyperquantum-jump could be used for precursor ships as secondary (fast) engine. For primary engines I prefer the 'time splay-warp drive'-combination. :p
Also the fact that they hide in the ECS (so out of our universe's "membrane"/reality) could be used. Sure, in more simple forms.
Only reachable with a precursor ship with hyperquantum-jump engines.
Nothing more needs to be known if we talk over tactics :p
The fact of manipulating realitys with the "engine" and driving back in time should not be used: reason: - to much energy needed ...
or the risk of "damaging our universes sphere" + a feedback that would damage the precursor ship/ or its engine. Well: it is not total random. > having an "acitve stream" in our quantum reality also could mean the chronosphere has something like a ... how to say it ... "defence system" (hidden in phyiscal parameters).
... and then their quantumjump-engines get overheated =p
~
I realy want to leave our galaxy and travel to other galaxys :p.
But out in the ECS - some kind of "nullroom"?
Must be dark there ... or not? How looks it if there is no room and no time outside?
Also the question: are there more "worlds" out there? And can you see them somehow if you look outside? :p
And can you reach them with hyperquantum-jumps or do we need something even bigger - like: hyperchronosphere-jumps?.
[oh ... too bad iam not allowed to share some answers]
Whew ... things get fast overcomplexe here.
But it needs to be very complexe if the lazy precursors want to bring the room to them. =p