Placing Engineer buildings...

[Vander]

I've found obj_sentrygun and obj_dispenser.

Did they leave out teleporters?

Or am I just missing something?

 

[World Of Frisbee Crisis]

They haven't included teleporters yet.

 

[Foreverkul]

You don't EXACTLY need to.
Just make a prop_dynamic and a teleport trigger and destination. You can make it be destroyed but an engi won't be able to fix it.
Hopefully they get around to it though.