RAW I think the all special rules confer unfortunately.
In a "lets not have tau ruin the entire hobby AGAIN' state of mind I'm going with lets just go with markerlights transfer. It is powerful enough that I can see almost all competitive tau players dropping obsec for this thing.
Having your entire army get Tankhunter + twin-linked+ignores cover + (dropping enemies -1T) is broken. ALthough I would love to see 3 riptides instant death an entire wolfstar because they are all T4 I'd rather not see what they do to everything else.
There is a reason darkstrider is limited who he can join, and why even GW decided to stop people joining buffmanders to riptides.
I'm sorry Tau player but this will without a doubt be universally house-ruled for tournaments regardless of how GW rules it. Enjoy using it in pick-up games to ass-rape unsuspecting opponents though I guess.
....and this is why Invisibility doesn't need a nerf.
"Don't take my win from me! I don't have many to claim!"
-Dandy