This seems like something that new maps would have to be designed around, rather than just tossing them into our current maps.

Something like this is a HUGE shake-up to point to point transportation, and would have huge effects on the flow of battle.
If implemented well, it will be awesome. If implemented poorly, it will be horrifying.

Tread carefully Ratatti. Do it, but do it right.

That's why my focus is using it for simple new player experience, such as long walks and redlining, and not too far reaching into competitive meta, I don't want to diminish the role of transports and or logistics.

For example:

I'll use Border Gulch, as it seems the obvious choice for something like this...

1.)1-way transporter from the blue MCC spawn room to the little indent in the wall on the roof of C-12.
2.)1 way transporter from the blue ground spawn to the same indent.
Mirror that on the other side for the red team.

3.)2-way transporter from the back of K-13 to the slanted roof you can see in E-9
Suddenly the mostly ignored Delta becomes a power-point in Skirmish, able to mount a strong attack onto the center point.

I am loving these. Please, everyone, think about and propose great spots, to make maps more dynamic, unused objectives, those pain points you hate. Be as specific as possible.

Love it!

Remotes were the first thing which crossed my mind, and it looks like you've already worked that out. Exit Nodes would need strong scan precision (to show remotes) and scan range (to show campers).

Question:
If a unit stood atop a Entry Node, would it be possible for his FOV to "phase between" Entry and Exit Nodes? This way he could look around the Exit Node from the safety of the Entry Node. If all looks clear, press "X" to commit to travel. If not, press "O" to cycle to next Exit Node.

I think an easier and more absolute way to provide RE protection would just be a vicinity based feature that made REs(and possibly all equipment) impossible to deploy near the teleporters.
This would go a long way towards preventing Repair Hive, Uplink, and RE spam near the links, all of which could easily become a problem.

Conversely the enemy team could coordinate a defensive push as well (suddenly 5 tanks rush out of the portals and break the enemy team). Could be fun.

With the small size of most maps i dont really care for the idea. If ccp were to enable the full scale of the maps and battle fields per match (someone recently had a thread showing maps that were part of the same area) i could see the logic, but then i feel this would make vehicles all the more irrelevant.

Personally id rather see squads being packed into dropships and transported as it feels more like a gritty new eden like experience rather than an arcade game mechanic.

If the NPE is the focus why not have a message pop up at the top of the screen if someone calls in a vehicle during the first minute of an academy match that says - x has called a LAV get in by pressing circle. To change seat press triangle.

What do these transporters look like?
Are they Halo 3 style energy pads, or are they Halo 1 style portal-doorways?
Or something completely different?
It would be nice to know so we can provide ideas that make more sense.

doorways, I am not sure if we can modify them to be pads

Initial thought; Cool!!!
After some further consideration, I am not so sure anymore.

The potential negative sides are too great if not handled with uttermost care, even if just providing an escape from the redline. Some maps might be logical, but under no circumstances should these portals be used all the time (on all maps); just because..

Another concern I have is the required development time/effort required to get this from QA to the actual game client. You don't want this to feel "tacked on" or "gimmicky", so you will need animations for the portal, some 3D modelling for the actual structure (if you don't want it to float in mid air), UI map markers to indicate which portals lead to where, and which ones are one way and which ones are A <-> B. I suspect it might take some effort to do this properly.

TDLR: It's a really cool idea, but I think there are more things which I would rather have than portals, such as racial symmetry of vehicles (models), completly new game modes, etc.

I really like Foundation's idea for a separate deployments zone, connected to a battle zone (with common redline) using portals. This is how portals should be used; As a completly new map / concept / game mode. Then it's worth it.

Also can they be "toggled"? For example, could a portal only be Open on a conditional? (For example a portal from MCC to A if A is blue?)

Sure, but this is not a choice between portals OR this other thing, certainly not those two things you mention,

This is a VERY good question
If possible, this would basically allow similar game modes as Skirmish 1.0, where it's impossible to traverse unless some conditions are met.

Imagine a map consisting of multiple independent battlezones, all connected via one-way portals (big enough for vehicles?) which can only be switched by some vehicle action (destroying shields?). Within each zone are normal control points for infantry hacking.

Dear players,

using some future technology, one of our QA testers was able jury-rig a portal.

It can be placed on the map by a level designer, not a player.

It can either have a one way transport, from A to B, but not B to A, or fully A to B, B to A functionality.

When I saw this, my jaw dropped to the floor, and have been possessed by the possibilities this has.

However, this needs careful consideration so as to not become some round-robin gameplay mechanic where the blob just uses teleports to react to any change.

Good
1) My first thought is to really help redlining issues. Place three portals behind cover, near the safe spawn point. These would be one way to eliminate fleeing to safety in the redline. The end points could be at three places, midway from objectives,

2) Simply reduce walking distances in the big maps. So you could have two or three both-way portals

Bad
1) Portal camping, which could be remedied by granting cloak through using the portal much like an mcru. Remotes would be annoying as hell. Could also give each portal a strong scan precision and range to reduce that.

2) Round Robin gameplay

Please discuss constructively