The description here on BGG says:
"Some sets also include extra instillation tokens, Klingon cloak tokens, additional Romulan cloak/echo tokens, and extra control tokens"
My copy came with the extra Romulan cloak/echo tokens, and extra control tokens but not the Klingon nor the installation ones.
So I guess this is a real error? Why would some sets come with additional stuff? Has this officially been acknowledged by Wizkids?
I want to say that the Klingon and Federation control tokens are on the other side of the Romulan ones. There were no extra Klingon stealth tokens because they didn;t need any more. No klingon stealth ships were added, so they have all of those they need. I don't honestly remember if there were any Klimngon or Federation installation tokens in my Romulan set, but I cannot imagine the need for more of those. I want to say that there were a few with Romulan markings, but they are unnecessary to playing the game if you do not have them. I really don't think this is an error, more just misreading what was supposed to come with the expansion......