TEOs were an interesting elite to design. They are not just potent telepaths, rather they are trained to counter other telepaths and bring them to their knees. Bearing this in mind it seemed prudent to put the advanced rules for telepathics from the Mind Unbound into the UIG book - namely Null, Mind, Psi Armour and Cloak.
I have often deliberated over inserting previously printed items into new books but overall I think it's a good thing as I don't want players to need to have all the books in order to enjoy the book they have just purchased.
TEOs also gain a host of goodies at the start of each mission such as Psitropine and Metapsitrophin. Whereas normal telepaths need to roll to perceive telepathic resonance, TEOs can see it by default and can even make rolls to identify telepaths (although the target will still have ways to hide their nature.)
TEOs will also gain the ability to nullify effects going off near them so if an enemy Agent is attacking civilians with Assault, the TEO will be able to use their Nullify power against the effect, even if they cannot see the telepath directly.
Finally, and a bit off topic - Drive-thru RPG's website seems to have gone haywire and repriced all the books at crazy levels. Some PDFs were over £20 and others only a pound or two. I've repriced them all so apologies if things looked a little mad, it 'should' be fixed now.
Your thoughts on reprinting existing elements from existing books would be appreciated.
Cheers - James