Would be OP on Siege or Missile Assault; your whole team could instantly deliver EU/storm the AA and silos. The importance of boosting, stealth, etc. would be diminished.
I don't know about "Instantly" as the same transport tech would have to deploy both ends of the wormhole to begin with. And as I suggested before, they would be slow (C Class) and likely a little under-firepowered but maybe high armor. (dunno... something to balance them out.)
Then, depending on the implementation, either the transport tech itself would have to remain alive to maintain the wormholes (A-la WOW or Portal) or the other team would have to get through the wormholes before the physical device (A-La Stargate) was destroyed in either direction. And either team could only go through the portal in single file/one-at-a-time
Not to mention, these wormholes would be bi-directional and function for both teams. So if the enemy opens the second wormhole right ontop of you, your team could:
1) Storm through it yourself
2) Shoot through it as a "fatal funnel" (Google it, its a bad thing to go through as an attacker and a good thing for a defender.)
3) Shoot at the device/mech to destroy it
4) Any combination of 1, 2, and/or 3
Perhaps portalling could be an ability that stacks twice, so a single transport can lay the entry an exit of portal. and to make it so it's not abused, it could be a machine that is deployed to keep the portal open, the enemy could simply destroy the portal generator to shut it off.
Perhaps another even more interesting idea would be to make these tunnels public and visible on the minimap as soon as they are created, if the generator is destroyed and someone tries to go through at the same time they are sent to the place where they started.
Or perhaps we could try the TF2 engineer approach for teleporters instead of portals.
Sounds cool to me and along the lines of what I was thinking. Especially the "publiclly visible on the minimap and useable by both sides"
While I am not sure yet of the exact implementation, having some format of this ability would be great. Perhaps a single-mode teleporter that can open only two portals at one time, oldest one decays upon creation of a new portal -- and teleporting between portals takes the same amount of time as traveling between the portals at double the boosting speed of the fastest mech... However, moving between portals would require the player to stand in or around the portal for that duration before the instant transportation...
I would love to see some sort of version of this idea!
Hadn't thought of the "natural decay" thing though it would make sense in comparison to other items. I also think the idea of some sort of "idle" warmup to go through the wormhole so you are more of a "target" before jumping. Or it could even be a "recharge" between each transport so you cant just freight train through it with your entire team, instead its 10 second warmup/cooldown between.
In the end I am just glad some people think its interesting (and humorous)!