Gameplay: Deployable shields for Engineers

[Fafnir]

In E3 build engineers were able only to deploy turrets. I'm pretty sure, that devs are planning to add more to it, so why not give them some ideas? I came up with this after reading a thread about deployable covers in general discussion forum.

Name: Can't come up with anything good. Deployable Shield Generator sounds so generic.

How it looks: Three Nanite Systems styled pillars connected with horizontal bars. Generated shield looks like those covering deployable turrets, but it's much bigger, it's color also depends on faction.

How it works: Engineers deploy it as bare generators, but after few seconds it powers up and starts generating force field. This shield can be destroyed with like 8 Vanguard shots (it's up to balance), but it will regenerate after few seconds. To destroy it completely enemies would have to destroy the generators with like 1-2 shots right after destroying the shield OR go around and blow it up without even touching force fields.
You and your allies WOULDN'T be able to shot through your shields.

What it adds to the gameplay:
- Shields would provide cover for forward operation bases, including protecting deployed Galaxies, which are currently very vulnerable.
- Shields could be used to block gates and roads when players in base are preparing for an assault.
- Shields could be used to build various fortifications, if combined with deployable turrets and/or vehicles, i.e. Skyguard Lightning protected by shields can worry less about getting shot by ground vehicles.
- Infiltrators would have great and rather challenging targets to sabotage.
- EMP based weapons and explosives would work as hard counter to deployable shields, making EMP grenades and such more worthwhile. (Shinjorai takes credit for this suggestion)

I posted two pictures to better explain mechanics I mentioned earlier. Sorry for my terrible drawing skills
1 - Generators with destroyed shield, regenerating it.
2 - Shield is up.

What do you think about it?

EDIT: Keep in mind, that all numbers mentioned above are not set in stone. Shield health, generator health, length, height, minimal placement radius, etc. - everything can be balanced.